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
Claims 1-5 are withdrawn from further consideration pursuant to 37 CFR 1.142(b), as being drawn to a nonelected invention, there being no allowable generic or linking claim. Applicant timely traversed the restriction (election) requirement in the reply filed on December 3, 2025. However, the claims were also cancelled, therefore, the restriction is moot.
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 6-15 are rejected under 35 U.S.C. 103 as being unpatentable over Nauka et al (US 2018/0126631) in view of Knoerzer (US 5,230,963).
With regards to claims 6, 7, 9, 10, 11, 14, and 15, Nauka teaches a three-dimensional printing build material (abstract) that includes a polymer particle (abstract) that includes polyolefins (0038) and a radiation absorbing additive (abstract), and water (0021).
Nauka does not teach the addition of the crosslinkable group on the polymer.
Knoerzer teaches a multilayer film (abstract) containing a polypropylene and maleated polypropylene (abstract) and teaches the motivation for using a maleic anhydride modified polypropylene resin to be because ads to the adhesion effect of the polymer (column 2, lines 7-19). Nauka and Knoerzer are analogous in the art of polymeric compositions. In light of the benefit above, it would have been obvious to one skilled in the art prior to the effective filing date of the present invention to use the modified polymer of Knoerzer as the polymer of Nauka, thereby obtaining the present invention.
Nauka does not teach the addition of the multifunctional compound.
However, it is well known to one skilled in the art prior to the effective filing date of the present invention that the motivation for adding multifunctional monomers to be because they increase the reactivity for crosslinking of the composition. In light of the benefit above one skilled in the art prior to the effective filing date of the present invention would know to add a multifunctional monomer to the composition of Nauka, thereby obtaining the present invention.
With regards to claim 8, Nauka teaches the polymer to be a copolymer of polyethylene and polypropylene (0039).
With regards to claim 12, Nauka teaches the particle size of the polymer to be from 1 µm to about 100 µm (0038).
With regards to claim 13, Nauka teaches the absorbing agent to include metal dithiolenes (0035).
Conclusion
Any inquiry concerning this communication or earlier communications from the examiner should be directed to JESSICA WHITELEY whose telephone number is (571)272-5203. The examiner can normally be reached 8 - 5:00.
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/JESSICA WHITELEY/Primary Examiner, Art Unit 1763