Prosecution Insights
Last updated: October 02, 2026
Application No. 18/821,813

SELF-RELEASING, UV BLOCKING SURFACING MATERIALS FOR COMPOSITE PARTS

Non-Final OA §103§112
Filed
Aug 30, 2024
Priority
Dec 26, 2017 — provisional 62/610,391 +2 more
Examiner
SHAH, SAMIR
Art Unit
Tech Center
Assignee
CYTEC INDUSTRIES INC.
OA Round
1 (Non-Final)
36%
Grant Probability
At Risk
1-2
OA Rounds
2y 0m
Est. Remaining
71%
With Interview

Examiner Intelligence

Grants only 36% of cases
36%
Career Allowance Rate
192 granted / 527 resolved
-23.6% vs TC avg
Strong +35% interview lift
Without
With
+34.9%
Interview Lift
resolved cases with interview
Typical timeline
4y 1m
Avg Prosecution
61 currently pending
Career history
585
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
56.9%
+16.9% vs TC avg
§102
13.9%
-26.1% vs TC avg
§112
22.7%
-17.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 527 resolved cases

Office Action

§103 §112
DETAILED ACTION Notice of Pre-AIA or AIA Status The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Election/Restrictions Applicant’s election without traverse of group I in the reply filed on 07/20/2026 is acknowledged. Claims 15 and 16 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected group, there being no allowable generic or linking claim. Election was made without traverse in the reply filed on 07/20/2026. Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claims 6-7 are rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Claim 6 recites “the layer further comprises”. It is not clear what layer is addressed in this claim. Is it the curable resin layer, releasable layer or the polymer layer? Claim Objections Claims 12-14 are objected to because of the following informalities: Claims 12-14 recite “the surfacing material”. It should be “The self-releasing surfacing material”. Appropriate correction is required. Claim Rejections - 35 USC § 103 The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. Claims 1, 3 and 8-14 is/are rejected under 35 U.S.C. 103 as being unpatentable over Sang et al. (US 2014/0154496) in view of Huang et al (US 2017/0145256). Regarding claim 1, Sang discloses multilayer structure capable of UV protection (paragraphs 0008, 0036) comprising a curable resin layer laminated to a releasable layer (paragraphs 0010-0012) wherein the curable resin layer comprising thermoset resins (paragraph 0020). Sang discloses releasable paper layer but does not disclose that the releasable layer comprising a polymer layer with a coating of organosilicon polymer. Huang discloses a release liner comprising a coating composition comprising organopolysiloxane on at least one side of thermoplastic film such as polyester film, i.e. a releasable layer comprising a thermoplastic polyester elastomer layer coated on one or both sides with a coating of organosilicon polymer, to exhibit slipperiness and a suitable peel resistance value (abstract, paragraphs 0011, 0036, 0119). It would have been obvious to one of ordinary skill in the art to use the release liner of Huang instead of releasable paper layer to obtain slipperiness and a suitable peel resistance value. Given that Sang in view of Huang discloses the same multilayer as recited in present claim, it is clear that the multilayer of Sang in view of Huang would intrinsically possess the same properties such as self-releasing. Further Huang discloses organosilicon polymer coated on one or both sides of the thermoplastic film, it is clear that when both sides of the film is coated with the organosilicon polymer, the organosilicon polymer is an outermost layer with an exposed surface. It is noted that when the organosilicon polymer of Huang coated on one side of the thermoplastic film, it would have been obvious to one of ordinary skill in the art to use the organosilicon polymer of Huang to be coated on inside or outside surface of the thermoplastic film to obtain slipperiness and/or suitable peel resistance value upon user’s requirements. Therefore, when its coated on the outside surface of the thermoplastic film, it meets the present claim requirement of organosilicon polymer is an outermost layer with an exposed surface. Regarding claim 3, Sang in view of Huang discloses the surfacing material of claim 1, wherein the organosilicone polymer coating contains elemental silicon, oxygen and carbon. Regarding claim 8, Sang in view of Huang discloses the surfacing material of claim 1, wherein the curable resin layer has a film weight in the range of 50 to 150 gsm (paragraph 0009). Regarding claim 9, Sang in view of Huang discloses the surfacing material of claim 1, wherein the curable resin layer does not comprise any reinforcement fibers (paragraph 0043). Regarding claim 10, Sang in view of Huang discloses the surfacing material of claim 1, further comprising an electrically conductive layer (13, fig. 1) laminated to one side of the curable resin layer such that the curable resin layer (11, fig. 1) is between the releasable layer (12, fig. 1) and the conductive layer (fig. 1, paragraph 0012). Regarding claim 11, Sang in view of Huang discloses the surfacing material of claim 10, wherein the electrically conductive layer is solid metal foil (abstract, paragraph 0010). Regarding claim 12, Sang in view of Huang discloses the surfacing material of claim 1, wherein the curable resin layer comprises one or more multifunctional epoxy resin and an amine curing agent (paragraph 0043). Regarding claim 13, Sang in view of Huang discloses the surfacing material of claim 1, wherein the curable resin layer is formed from a resin composition comprising an epoxy novolac resin having epoxy functionality of more than one (paragraph 0020), a tri-functional epoxy resin that is not an epoxy novolac resin (paragraph 0020), ceramic microspheres (paragraph 0043), an amine based curing agent (paragraph 0043) and toughening agent such as a copolymer of PES and PEES (paragraph 0025). Regarding claim 14, Sang in view of Huang discloses the surfacing material of claim 1, wherein the resin composition further comprises fumed silica (paragraph 0035). Claims 5-7 is/are rejected under 35 U.S.C. 103 as being unpatentable over Sang et al. (US 2014/0154496) in view of Huang et al (US 2017/0145256) and further in view of Chang et al. (US 2003/0003317). Regarding claims 5-7, Sang in view of Huang discloses the surfacing material of claim 1 but does not disclose UV stabilizer, color dyes and/or carbon black additive in the thermoplastic layer. Chang discloses thermoplastic laminated structure comprising exterior layer wherein the exterior layer comprises additives such as UV stabilizing agent, dye, i.e. color dyes, and/or carbon back for additive purpose (paragraphs 0027-0028) and to meet end users requirements. It would have been obvious to one of ordinary skill in the art to use the additives of Change in the thermoplastic layer of Sang in view of Huang for additive purpose and to meet end users requirements. Claims 1, 3 and 8-14 is/are rejected under 35 U.S.C. 103 as being unpatentable over Sang et al. (US 2014/0154496) in view of Ote (JP 2011-201035). Regarding claim 1, Sang discloses multilayer structure capable of UV protection (paragraphs 0008, 0036) comprising a curable resin layer laminated to a releasable layer (paragraphs 0010-0012) wherein the curable resin layer comprising thermoset resins (paragraph 0020). Sang discloses releasable paper layer but does not disclose that the releasable layer comprising a polymer layer with a coating of organosilicon polymer. Ote discloses mold release film (title) comprising organosilicon polymer coated on at least on one side of thermoplastic polyester elastomer, i.e. at least is interpreted as both sides of thermoplastic polyester elastomer, to obtain superior in followability to a mold and peelability from mold and also to obtain heat resistance and flexibility (0010, 0011, 0017, 0025, 0029). It would have been obvious to one of ordinary skill in the art to use the release film of Ote instead of releasable paper layer of Sang to obtain superior in followability to a mold and peelability from mold and also to obtain heat resistance and flexibility. Given that Sang in view of Ote discloses the same multilayer as recited in present claim, it is clear that the multilayer of Sang in view of Ote would intrinsically possess the same properties such as self-releasing. Further, Ote discloses organosilicon polymer coated on both sides of the thermoplastic film, it is clear that when both sides of the film is coated with the organosilicon polymer, the organosilicon polymer is an outermost layer with an exposed surface. It is noted that when the organosilicon polymer of Ote coated on one side of the thermoplastic film, it would have been obvious to one of ordinary skill in the art to use the organosilicon polymer of Ote to be coated on inside or outside surface of the thermoplastic film to obtain superior in followability to a mold and peelability from mold and also to obtain heat resistance and flexibility upon user’s requirements. Therefore, when its coated on the outside surface of the thermoplastic film, it meets the present claim requirement of organosilicon polymer is an outermost layer with an exposed surface. Regarding claim 3, Sang in view of Ote discloses the surfacing material of claim 1, wherein the organosilicone polymer coating contains elemental silicon, oxygen and carbon. Regarding claim 8, Sang in view of Ote discloses the surfacing material of claim 1, wherein the curable resin layer has a film weight in the range of 50 to 150 gsm (paragraph 0009). Regarding claim 9, Sang in view of Ote discloses the surfacing material of claim 1, wherein the curable resin layer does not comprise any reinforcement fibers (paragraph 0043). Regarding claim 10, Sang in view of Ote discloses the surfacing material of claim 1, further comprising an electrically conductive layer (13, fig. 1) laminated to one side of the curable resin layer such that the curable resin layer (11, fig. 1) is between the releasable layer (12, fig. 1) and the conductive layer (fig. 1, paragraph 0012). Regarding claim 11, Sang in view of Ote discloses the surfacing material of claim 10, wherein the electrically conductive layer is solid metal foil (abstract, paragraph 0010). Regarding claim 12, Sang in view of Ote discloses the surfacing material of claim 1, wherein the curable resin layer comprises one or more multifunctional epoxy resin and an amine curing agent (paragraph 0043). Regarding claim 13, Sang in view of Ote discloses the surfacing material of claim 1, wherein the curable resin layer is formed from a resin composition comprising an epoxy novolac resin having epoxy functionality of more than one (paragraph 0020), a tri-functional epoxy resin that is not an epoxy novolac resin (paragraph 0020), ceramic microspheres (paragraph 0043), an amine based curing agent (paragraph 0043) and toughening agent such as a copolymer of PES and PEES (paragraph 0025). Regarding claim 14, Sang in view of Ote discloses the surfacing material of claim 1, wherein the resin composition further comprises fumed silica (paragraph 0035). Claims 5-7 is/are rejected under 35 U.S.C. 103 as being unpatentable over Sang et al. (US 2014/0154496) in view of Ote (JP 2011-201035) and further in view of Chang et al. (US 2003/0003317). Regarding claims 5-7, Sang in view of Ote discloses the surfacing material of claim 1 but does not disclose UV stabilizer, color dyes and/or carbon black additive in the thermoplastic layer. Chang discloses thermoplastic laminated structure comprising exterior layer wherein the exterior layer comprises additives such as UV stabilizing agent, dye, i.e. color dyes, and/or carbon back for additive purpose (paragraphs 0027-0028) and to meet end users requirements. It would have been obvious to one of ordinary skill in the art to use the additives of Change in the thermoplastic layer of Sang in view of Ote for additive purpose and to meet end users requirements. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to SAMIR SHAH whose telephone number is (571)270-1143. The examiner can normally be reached 8:00am - 5:00pm. Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Callie Shosho can be reached at 571-272-1123. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /SAMIR SHAH/Primary Examiner, Art Unit 1787
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Prosecution Timeline

Aug 30, 2024
Application Filed
Sep 04, 2026
Non-Final Rejection mailed — §103, §112 (current)

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Prosecution Projections

1-2
Expected OA Rounds
36%
Grant Probability
71%
With Interview (+34.9%)
4y 1m (~2y 0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 527 resolved cases by this examiner. Grant probability derived from career allowance rate.

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