Prosecution Insights
Last updated: July 17, 2026
Application No. 18/851,862

FORMALDEHYDE-FREE AQUEOUS PIGMENT COMPOSITION AND COATED ARTICLES PREPARED WITH THE SAME

Non-Final OA §102§103
Filed
Sep 27, 2024
Priority
Apr 29, 2022 — nonprovisional of PCTCN2022090289
Examiner
MCKINNON, LASHAWNDA T
Art Unit
Tech Center
Assignee
Dow Inc.
OA Round
1 (Non-Final)
53%
Grant Probability
Moderate
1-2
OA Rounds
1y 8m
Est. Remaining
84%
With Interview

Examiner Intelligence

Grants 53% of resolved cases
53%
Career Allowance Rate
400 granted / 751 resolved
-6.7% vs TC avg
Strong +31% interview lift
Without
With
+31.1%
Interview Lift
resolved cases with interview
Typical timeline
3y 5m
Avg Prosecution
60 currently pending
Career history
826
Total Applications
across all art units

Statute-Specific Performance

§103
92.2%
+52.2% vs TC avg
§102
3.6%
-36.4% vs TC avg
§112
3.0%
-37.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 751 resolved cases

Office Action

§102 §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 . 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 and 9-10 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Xue et al. (WO2021092789). Regarding claim 1, Xue et al. teaches a formaldehyde-free aqueous pigment composition of Example 1-1 comprising A-1 and B-I-1, wherein A-1 is an aqueous dispersion comprising acrylic acid/maleic anhydride copolymer, and B-I-1 is an aqueous emulsion comprising a copolymer including 81% butyl acrylate, 13% styrene, 2.5% acrylic acid, 2.5% itaconic acid, 1% hydroxyl ethyl methacrylate, by weight based on the dry weight of the copolymer which meets the claimed amounts and components. Xue et al. teaches that the composition includes pigment [0051], and thickener (can be construed as filler, fibers or waxes) [0051]. Regarding claims 9-10, Xue et al. teaches a coated article comprising a substrate (nonwoven fabric) comprising a coating layer at least partially covering one or both sides of the substrate wherein the coating layer is formed with the formaldehyde free aqueous pigment composition. 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 2-4 are rejected under 35 U.S.C. 103 as being unpatentable over Xue et al. (WO2021092789) in view of Dombrowski et al. (PG Pub. 2011/0244134). Regarding claims 2-4, Xue et al. are silent regarding the claimed two stage emulsion. Xue et al. teach the claimed components of hydroxyl containing ethylenically unsaturated C2-C12 carboxylic monomer, ethylenically unsaturated C2-C12 mono-carboxylic monomer, ethylenically unsaturated C2-C12 di-carboxylic monomer and ethylenically unsaturated C2-C12 carboxylic monomer in aqueous dispersion B. However, Dombrowski et al. teaches aqueous emulsion that is two-stage emulsion of a first stage component comprising the hydroxyl group functionalized copolymer and a second stage component comprising a (co)polymer derived from the polymerization of monomers including one or more ethylenically unsaturated monomers including from the recited markush group ((meth)acrylic acid is taught) with the weight ratio of the first stage component and the second stage component being in the claimed range in order to affect the Tg and properties of the polymer [Abstract, 0004]. It would have been obvious to one of ordinary skill in the art to use the two stage emulsion of Dombrowski et al. in Xue et al. in order to affect the Tg and properties of the polymer and arrive at the claimed invention. Claims 5-6 are rejected under 35 U.S.C. 103 as being unpatentable over Xue et al. (WO2021092789) in view of Clamen et al. (US Pat. 7,199,179). Regarding claims 5-6, Xue et al. teaches aqueous emulsion A and aqueous dispersion B have a solid content in the claimed range based on the total weight of the aqueous dispersion, but are silent regarding the specifics of the composition claimed in claims 5 and 6. However, Clamen et al. teaches the solid content of pigment aqueous composition is in the claimed range [Examples] and the claimed percentage of A and B in order to provide the desired viscosity, thickness and mechanical properties. Clamen et al. also teaches the first stage also includes at least one of the claimed additional comonomers (e.g. butadiene, styrene, (meth)acrylamide) [2:50-3:2] and it would have been obvious to one of ordinary skill in the art to use the claimed amount of the additional comonomer in order to affect to mechanical properties of the composition. Further, it would have been obvious to one of ordinary skill in the art to adjust the amounts of A,B, pigment and thickener and balance of water and additional comonomer as Xue and Clamen teach adjusting the amounts in order to provide the desired viscosity, thickness and mechanical properties. It would have been obvious to one of ordinary skill in the art to use the solid content of the aqueous pigment composition and amounts of the claimed components in order to provide the desired viscosity, thickness and mechanical properties and arrive at the claimed invention. Claim 7-8 are rejected under 35 U.S.C. 103 as being unpatentable over Xue et al. (WO2021092789) in view of Haeberle et al. (WO 2007/090735). Regarding claims 7-8, Xue et al. are silent regarding the specifics of the pigment and thickener. However, Haeberle et al. teach pigment in the claimed amount including azo pigment for example in order to color the substrate such as a textile and thickener including polyacrylic thickener in order to adjust the viscosity of the composition [0084, 0190 and 0213]. It would have been obvious to use the pigment in the claimed amount and thickener in the claimed amount as taught by Haeberle et al. in Xue et al. in order to color substrate and adjust the viscosity of the composition and arrive at the claimed invention. Claims 5 is rejected under 35 U.S.C. 103 as being unpatentable over Xue et al. (WO2021092789) in view of Clamen et al. (US Pat. 7,199,179) in view of Haeberle et al. (WO 2007/090735). Regarding claim 5, Xue et al. teaches aqueous emulsion A and aqueous dispersion B have a solid content in the claimed range based on the total weight of the aqueous dispersion, but are silent regarding the specifics of the composition claimed in claims 5 and 6. However, Clamen et al. teaches the solid content of pigment aqueous composition is in the claimed range and the claimed percentage of A and B in order to provide the desired viscosity, thickness and mechanical properties [Examples]. Clamen et al. also teaches the first stage also includes at least one of the claimed additional comonomers (e.g. butadiene, styrene, (meth)acrylamide) and it would have been obvious to one of ordinary skill in the art to use the claimed amount of the additional comonomer in order to affect to mechanical properties of the composition. Further, it would have been obvious to one of ordinary skill in the art to adjust the amounts of A,B, pigment and thickener and balance of water and additional comonomer as Xue and Clamen teach adjusting the amounts in order to provide the desired viscosity, thickness and mechanical properties. It would have been obvious to one of ordinary skill in the art to use the solid content of the aqueous pigment composition and amounts of the claimed components in order to provide the desired viscosity, thickness and mechanical properties and arrive at the claimed invention. In the alternative, the previous combination is silent regarding the specifics of the pigment and thickener. However, Haeberle et al. teach pigment in the claimed amount including azo pigment for example in order to color the substrate such as a textile and thickener including polyacrylic thickener in order to adjust the viscosity of the composition. It would have been obvious to use the pigment in the claimed amount and thickener in the claimed amount as taught by Haeberle et al. in the previous combination in order to color substrate and adjust the viscosity of the composition and arrive at the claimed invention. Prior Art Not Used but Relevant US Pat. 5,977,232 teaches formaldehyde-free, accelerated cure, aqueous composition for bonding glass fiber heat-resistant nonwovens. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to SHAWN MCKINNON whose telephone number is (571)272-6116. The examiner can normally be reached Monday thru Friday generally 8:00am-5:00pm 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, 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. /Shawn Mckinnon/Examiner, Art Unit 1789
Read full office action

Prosecution Timeline

Sep 27, 2024
Application Filed
Jun 16, 2026
Non-Final Rejection mailed — §102, §103 (current)

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

1-2
Expected OA Rounds
53%
Grant Probability
84%
With Interview (+31.1%)
3y 5m (~1y 8m remaining)
Median Time to Grant
Low
PTA Risk
Based on 751 resolved cases by this examiner. Grant probability derived from career allowance rate.

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