Prosecution Insights
Last updated: September 29, 2026
Application No. 18/464,531

POLYORGANOSILOXANE-CONTAINING POLYMER, COMPOSITION, AND MOLDED ARTICLE

Final Rejection §102
Filed
Sep 11, 2023
Priority
Mar 30, 2021 — JP 2021-056873 +1 more
Examiner
BHUSHAN, KUMAR R
Art Unit
1766
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Mitsubishi Chemical Corporation
OA Round
2 (Final)
74%
Grant Probability
Favorable
3-4
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 74% — above average
74%
Career Allowance Rate
606 granted / 825 resolved
+8.5% vs TC avg
Strong +33% interview lift
Without
With
+32.8%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
49 currently pending
Career history
858
Total Applications
across all art units

Statute-Specific Performance

§101
1.3%
-38.7% vs TC avg
§103
45.3%
+5.3% vs TC avg
§102
17.8%
-22.2% vs TC avg
§112
23.6%
-16.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 825 resolved cases

Office Action

§102
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 . In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. 3. Claims 1-12 are pending as amended on 06/16/26. 4. Any rejections and/or objections made in the previous Office action and not repeated below are hereby withdrawn. 5. The text of those sections of Title 35, U.S. Code not included in this action can be found in a prior Office action. Priority 6. This application is a CON of PCT/JP2022/014884 03/28/2022. Acknowledgment is made of applicant’s claim for foreign priority under 35 U.S.C. 119 (a)-(d). The certified copy has been filed in parent Application JAPAN 2021-056873 03/30/2021 filed on 10/20/23. Information Disclosure Statement 7. The information disclosure statement (IDS) submitted on 04/15/26 was filed after the mailing date of the non-final Office action on 03/18/26. The submission is in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statement is being considered by the examiner. Response to Amendment 8. Applicant's amendment filed on 06/16/26, has been fully considered and entered. Response to Arguments 9. Applicant's arguments with respect to rejection of claims 1-12 under 35 U.S.C. 102(a)(1) as being anticipated by Otonari (US 2016/0194428) filed on 06/16/26, have been fully considered but are not persuasive. Applicants arguments are related to the alkali metal and its amount. This is respectfully considered but are not persuasive. Even though, applicants defend the composition of the claimed limitation based on the its method of preparation in their specification, the composition limitation does not depends on its method of preparation. Claim 1 require 100 ppm by mass or more of alkali metal atom, applicants specification defined the alkali metal atom introduced in the form of alkali metal salt (para [0165]). Otonari expressly discloses a thermoplastic resin composition containing 0.1 parts by mass to 12 parts by mass of the graft copolymer containing rubber, and 0.01 parts by mass to 10 parts by mass of the flame retardant, and specifically to flame retardant such as alkali metal atom such as sodium or potassium contained in the range of 0.01 to 2 parts by mass (read on 100 ppm by mass or more of alkali metal atom) based on 100 parts by mass of the thermoplastic resin (para [0023], [0027, [0031], [0194]-[0195]). Accordingly, previous rejections have been maintained. Claim Rejections - 35 USC § 102 The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claims 1-12 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Otonari (US 2016/0194428). Regarding claims 1-3, 5-6, 9, 11-12, Otonari discloses a molded product comprising a thermoplastic resin composition containing 0.1 parts by mass to 12 parts by mass of the graft copolymer containing rubber, and 0.01 parts by mass to 10 parts by mass of the flame retardant, and specifically to flame retardant such as alkali metal atom such as sodium or potassium contained in the range of 0.01 to 2 parts by mass such as alkali metal atom such as sodium or potassium (read on 100 ppm by mass or more of alkali metal atom) based on 100 parts by mass of the thermoplastic resin, wherein the graft copolymer containing rubber is a graft copolymer containing rubber formed by performing graft polymerization on a composite rubber containing a polyorganosiloxane and a polyalkyl(meth)acrylate and one or more vinyl monomers such as (meth)acrylate , e.g. methyl (meth)acrylate, ethyl (meth) acrylate, butyl (meth)acrylate, 2-ethylhexyl (meth)acrylate, phenyl (meth)acrylate, or benzyl (meth)acrylate, wherein mass average particle diameter Dw is 400 to 1000 nm (para [0023], [0027], [0031], [0035], [0055], [0155], [0194]-[0195]), fall into claimed range of 350 nm or more and 1000 nm or less, meeting the requirements of claims 1-3, 5-6, 9, 11-12. Regarding claim 4, Otonari discloses the graft part is 10 mass% (para [0023]), fall into claimed range of 5 to 20 mass%. Regarding claim 7, Otonari discloses the polyorganosiloxane containing siloxane-based crosslinking agent in amount of 0 to 1.8 mass % (para [0044]), fall into claimed range of 3 mass% or less. Regarding claim 8, Otonari discloses polyorganosiloxane in the graft copolymer is 70 to 98 mass% (para [0027]; read on claimed range). Regarding claim 10, Otonari discloses the polyorganosiloxane containing polymer is in a powder state (para [0052]). Conclusion Reference Cheil Industries (JP 2009-127052) was cumulative in nature to the above rejection and thus not set forth. THIS ACTION IS MADE FINAL. Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to KUMAR R BHUSHAN whose telephone number is (313)446-4807. The examiner can normally be reached 9.00 AM to 5.50 PM (EST). 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, RANDY P GULAKOWSKI can be reached at (571)272-1302. 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. /KUMAR R BHUSHAN/Primary Examiner, Art Unit 1766
Read full office action

Prosecution Timeline

Sep 11, 2023
Application Filed
Mar 18, 2026
Non-Final Rejection mailed — §102
Jun 16, 2026
Response Filed
Aug 27, 2026
Final Rejection mailed — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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2y 6m to grant Granted Sep 22, 2026
Patent 12735519
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2y 11m to grant Granted Sep 15, 2026
Patent 12729285
RUBBER COMPOSITION AND PNEUMATIC TIRE USING SAME
3y 6m to grant Granted Sep 08, 2026
Patent 12723058
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3y 9m to grant Granted Sep 01, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
74%
Grant Probability
99%
With Interview (+32.8%)
2y 9m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 825 resolved cases by this examiner. Grant probability derived from career allowance rate.

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