Prosecution Insights
Last updated: October 23, 2026
Application No. 18/827,876

WATER-BASED HOT-MELT ADHESIVE AND WATER-BASED HOT MELT ADHESIVE COATED NON-WOVEN FABRIC

Final Rejection §103
Filed
Sep 09, 2024
Priority
Nov 09, 2023 — TW 112143275
Examiner
IMANI, ELIZABETH MARY COLE
Art Unit
1789
Tech Center
1700 — Chemical & Materials Engineering
Assignee
BenQ Materials Corporation
OA Round
2 (Final)
34%
Grant Probability
At Risk
3-4
OA Rounds
2y 4m
Est. Remaining
58%
With Interview

Examiner Intelligence

Grants only 34% of cases
34%
Career Allowance Rate
318 granted / 950 resolved
-31.5% vs TC avg
Strong +25% interview lift
Without
With
+24.9%
Interview Lift
resolved cases with interview
Typical timeline
4y 6m
Avg Prosecution
73 currently pending
Career history
1035
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
54.1%
+14.1% vs TC avg
§102
15.5%
-24.5% vs TC avg
§112
20.9%
-19.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 950 resolved cases

Office Action

§103
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. 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. Claim(s) 1-18 is/are rejected under 35 U.S.C. 103 as being unpatentable over Maak et al, WO 2007/008558. Maak discloses an aqueous dispersion of a hot melt adhesive. See page 3, paragraph 0010 and page 4, paragraph 0018. The dispersion comprises one or more polymers, one or more tackifiers, one or more waxes and water. The dispersion has an average particle size of from 0.1-100 microns. See page 3, paragraph 0011. The adhesives can be applied to nonwoven hygiene products. See page 4, paragraph 00019 and page 46, paragraph 00151. With regard to the polymer employed in the dispersion, suitable polymers include polyolefins, ethylene vinyl acetate polymers, (see page 5, paragraph 0020), styrene butadiene styrene polymers, styrene butadiene rubber, styrene acrylates, ethylene acrylic resin and polyacrylic resins, as well as ionomers. See page 5, paragraph 0020-page 7, paragraph 0024. More than one polymer or ionomer can be employed in the composition. See page 5, paragraph 0019. In addition to the polymers, the composition can include waxes, such as Fischer-Tropsch waxes, petroleum derived waxes and synthetic waxes, as well as natural waxes. See paragraphs 0099 and 00100 on page 33. Additionally, the dispersions can include tackifiers such as aliphatic, cycloaliphatic and aromatic hydrocarbons; terpenes and modified turpenes; rosins and rosin derivatives. Note that the terpenes and modified turpenes and rosins correspond to the claimed emulsion tackifier and that the paragraph 00102 disclose partially hydrogenated cycloaliphatic petroleum hydrocarbon resins with softening points of 100-130 , such as EASTOTAC H-100, H-115 and H-130. H-130 is a C5 petroleum solid material. The tackifiers have a ring and ball softening point from 70-150 degrees C and a viscosity at 350F of not more than 2000 centipoise. See paragraph 00101 on page 34. The combination of polymer, ionomer, wax and tackifying resins are about 1-74 volume percent of the dispersion and water is about 26-99 volume percent See paragraph 00107. Maak differs from the claimed invention because it does not disclose the claimed amounts of each of the polymer, ionomer, wax and two kinds of tackifiers, however, since Maak teaches the combination of polymer, ionomer, wax and tackifiers are about 1-74 volume percent, it would have been obvious to one of ordinary skill in the art to have selected ranges for each of the components within the broad ranges taught by Maak in order to provide a composition which had the desired degree of tack, (tackifier), viscosity, (wax) and adhesiveness, (polymer). With regard to the size of the tackifiers and wax particles, Maak teaches that the dispersion components have a size of 0.1-100 microns, (see page 3, paragraph 0011). Further, while EASTOTAC tackifiers are solid materials or flakes, they are not disclosed as being microparticles, however, it would have been obvious to have ground the tackifiers to the desired size to form a mixture with the other components in the adhesive composition. With regard to the glass transition temperature of the composition, wax particles, and polymer, since the same types of polymers, waxes and tackifiers are used in Maak as are claimed, it is reasonable to expect that they would have the claimed glass transition temperatures, since like materials must have like properties. With regard to claim 16-18, Maak teaches that the composition can be applied to nonwoven hygiene products and is especially useful for bonding polyolefins. See paragraphs 00157 and 00151. Therefore, it would have been obvious to have applied the adhesive of Maak to spunbonded polyolefin nonwovens, in view of the teaching of Maak that the adhesive was suitable for bonding polyolefins and nonwovens and to have selected the amount of adhesive which produced a suitably durable bond without impairing breathability or using an excess amount of adhesive for reasons of economy. Applicant's arguments filed 7/30/26 have been fully considered but they are not persuasive. Applicant argues that in Maak the particle size is of the dispersion in water, rather than of the individual particles of wax. However, the particles of Maak include the wax and the instant claims include open language and do not preclude that the wax is in particulate form along with other components. With regard to the unexpected results, Applicant argues that the prepared water based hot melt adhesive is suitable for medical packaging and provide sufficient gas permeability after heat sealing which allows for sterilization and which reduces the incidents of fiber tear contamination. However, none of these limitations are present in the claims. Further, there is no showing that is commensurate in scope with the claims establishing results which are significant and unexpected. Applicant argues that Maak is not used for the same types of applications, but is instead used for wood, cardboard and films, which do not require considerations of gas permeability or fiber tear. However, the instant claims are drawn to a hot melt adhesive per se. Further, with regard to claims 16-18, Maak also teaches applying the adhesive onto nonwoven substrates. Since the adhesive composition as claimed appears to be the same as the composition of Maak, it would be reasonable to expect that the properties of gas permeability and seal strength would be present once the adhesive of Maak was coated onto the same type of nonwoven substrate. Applicant’s amendment has overcome the previous 112 rejection. 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 ELIZABETH M IMANI whose telephone number is (571)272-1475. The examiner can normally be reached Monday-Wednesday 7AM-7:30; Thursday 10AM -2 PM. 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, Marla McConnell can be reached at 571-270-7692. 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. /ELIZABETH M IMANI/Primary Examiner, Art Unit 1789
Read full office action

Prosecution Timeline

Sep 09, 2024
Application Filed
May 18, 2026
Non-Final Rejection mailed — §103
Jul 30, 2026
Response Filed
Oct 02, 2026
Final Rejection mailed — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12768085
POLYETHYLENE MULTIFILAMENT INTERLACED YARN AND METHOD FOR MANUFACTURING THE SAME
5y 5m to grant Granted Oct 20, 2026
Patent 12766818
CORK-BASED TEXTILE ARTICLE AND PROCESS FOR THE MANUFACTURING THEREOF
3y 1m to grant Granted Oct 20, 2026
Patent 12723177
WATER-BASED HOT MELT ADHESIVE AND NONWOVEN COATED WITH THE WATER-BASED HOT MELT ADHESIVE
2y 0m to grant Granted Sep 01, 2026
Patent 12697754
METHOD OF RECYCLING FIBERS FROM POST-CONSUMER NYLON FABRICS
2y 10m to grant Granted Aug 04, 2026
Patent 12686955
2D NANOMATERIAL FIBER AND METHOD OF FABRICATING THE SAME
5y 0m to grant Granted Jul 21, 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
34%
Grant Probability
58%
With Interview (+24.9%)
4y 6m (~2y 4m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 950 resolved cases by this examiner. Grant probability derived from career allowance rate.

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