US 12,252,639 B2
UV-crosslinked hot-melt pressure-sensitive adhesive used for polyvinyl chloride insulation adhesive tape
Feng Wang, Baoding (CN); Shuqin Qi, Baoding (CN); and Shuang Li, Baoding (CN)
Assigned to SHANGHAI JUJIAO ENTERPRISE DEVELOPMENT CO., LTD, Shanghai (CN)
Filed by Hebei Yongle Tape Co., Ltd., Baoding (CN)
Filed on Jan. 11, 2021, as Appl. No. 17/145,537.
Application 17/145,537 is a continuation of application No. 16/074,608, abandoned, previously published as PCT/CN2016/081908, filed on May 12, 2016.
Claims priority of application No. 201610073413.1 (CN), filed on Feb. 3, 2016.
Prior Publication US 2021/0371709 A1, Dec. 2, 2021
Int. Cl. C09J 7/38 (2018.01); C08K 3/08 (2006.01); C08K 5/07 (2006.01); C08L 9/00 (2006.01); C08L 23/08 (2006.01); C08L 67/02 (2006.01); C09J 7/20 (2018.01); C09J 7/24 (2018.01); C09J 7/35 (2018.01); C09J 11/06 (2006.01); C09J 11/08 (2006.01); C09J 133/08 (2006.01); H01B 3/44 (2006.01); C08L 23/0869 (2025.01)
CPC C09J 7/385 (2018.01) [C09J 7/20 (2018.01); C09J 7/245 (2018.01); C09J 7/35 (2018.01); C09J 11/06 (2013.01); C09J 11/08 (2013.01); C09J 133/08 (2013.01); H01B 3/443 (2013.01); C08K 3/08 (2013.01); C08K 2003/0893 (2013.01); C08K 5/07 (2013.01); C08L 9/00 (2013.01); C08L 23/0869 (2013.01); C08L 67/025 (2013.01); C09J 2203/326 (2013.01); C09J 2301/408 (2020.08); C09J 2301/41 (2020.08); C09J 2301/414 (2020.08); C09J 2301/416 (2020.08); C09J 2427/006 (2013.01); C09J 2433/00 (2013.01); C09J 2495/00 (2013.01); Y02P 20/10 (2015.11)] 3 Claims
 
1. A composition for a UV-crosslinked hot-melt pressure-sensitive adhesive used for a PVC insulation adhesive tape, comprising the following major components: polymers containing vinyl monomers, functional monomers, soft monomers, and polymerizable photosensitive initiators, a polymerization initiator, and an antioxidant;
wherein the vinyl monomer is selected from a group consisting of one or more n-butyl acrylate, 2-ethylhexyl acrylate, n-octyl acrylate, isobornyl acrylate, n-dodecyl acrylate, methyl n-butyl acrylate, methyl 2-ethylhexyl acrylate, and methyl n-octyl acrylate, and the amount of the vinyl monomer is 40-65% of the total amount;
wherein the functional monomer is N-vinylpyrrolidone, and the amount thereof is 2-10% of the total amount;
wherein the soft monomer is C17 acrylate or C17 methacrylate, and the amount thereof is 5-15% of the total amount;
wherein the polymerizable photosensitive initiator is methacryloyloxy or acryloyloxy containing acetophenone or benzophenone derivative, and the amount thereof is 2-10% of the total amount; and
wherein the polymerization initiator comprises azo compounds, acyl peroxides, and alkyl peroxides, the azo compound being 2,2-azobisisobutyronitrile, and the acyl peroxides being benzoyl peroxide, didecanoyl peroxide or isononanoyl peroxide, or the polymerization initiator is benzotriazole-1-yl-oxy-tris (dimethylamino) phosphonium hexafluorophosphate, and the amount of the polymerization initiator is 1-10% of the total amount;
wherein the UV-crosslinked hot-melt pressure-sensitive adhesive optionally further comprise a tackifying resin,
wherein the tackifying resin is selected from the group consisting of rosin resins, terpene resins, petroleum resins, corresponding hydrogenated resins, corresponding esterified modified resins, and combination thereof, and
wherein the amount of the tackifying resin being 0-5% of the total amount, and
wherein the UV-crosslinked hot-melt pressure-sensitive adhesive further comprise a copolymer of one or more polymerizable photosensitive initiators and acrylate monomers, or comprising a mixture of oligomers of one or more polymerizable photosensitive initiators and acrylate high polymers.