29-10-2020 дата публикации
Номер: US20200339844A1
Принадлежит:
Adhesive tapes include a plasticized polyvinyl chloride backing, a primer including an ethylene/carbon monoxide-containing terpolymer and a styrene-containing block copolymer, and an adhesive. 1. An adhesive tape comprising:a backing comprising a plasticized polyvinyl chloride;a primer layer disposed on at least one major surface of the backing, wherein the primer layer comprises an ethylene/carbon monoxide-containing terpolymer, and a styrene-containing block copolymer; andan adhesive layer disposed on the primer layer.2. The adhesive tape of wherein the primer is solventless.3. The adhesive tape of wherein the ethylene/carbon monoxide-containing terpolymer comprises a third monomer selected from vinyl acetate claim 1 , n-butyl acrylate claim 1 , and a combination thereof4. The adhesive tape of wherein the ethylene/carbon monoxide-containing terpolymer comprises: (a) 20 wt-% to 80 wt-% ethylene monomer; (b) 3 wt-% to 30 wt-% carbon monoxide monomer; and (c) 5 wt-% to 60 wt-% of a third monomer claim 1 , wherein the percentages are based on the total weight of the terpolymer.5. The adhesive tape of wherein the third monomer is vinyl acetate.6. The adhesive tape of wherein the primer further comprises a second ethylene-containing copolymer or terpolymer comprising one or two comonomers having a polarity greater than that of ethylene.7. The adhesive tape of wherein the comonomers of the second ethylene-containing copolymer or terpolymer having a greater polarity than that of ethylene are selected from acids claim 6 , acetates claim 6 , epoxies claim 6 , acrylates claim 6 , and combinations thereof8. The adhesive tape of wherein the comonomers having a greater polarity than that of ethylene are selected from vinyl acetate claim 7 , acrylic acid claim 7 , methyl (meth)acrylate claim 7 , ethyl acrylate claim 7 , glycidyl methacrylate claim 7 , anhydride-functional monomers claim 7 , n-butyl acrylate claim 7 , and combinations thereof.9. The adhesive tape of wherein the ...
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