Patent ID: 6096428
Filing Date: 2000-08-01
Classification: B32B,C08J,Y10T

Abstract:
A tape product made according to the method comprising the steps of:(a) blending carboxyl carboxylate, anhydride, amide, imide, hydroxyl, or oxycarbonyl functional polyolefin with base and organo-onium compound that is stable in the presence of the base under processing conditions to form substantially non-fluorinated polymeric material where the base is selected from the group consisting of:(1) those bases represented by the formulas:X.sup.+ (OH).sup.-.sub.nX.sup.+ (OR).sup.-.sub.nX.sup.+ (OCY.sub.2 R.sub.f).sup.-.sub.nX.sup.+ (ORO).sup.- X.sup.+X.sup.+ (OCY.sub.2 R.sub.f CY.sub.2 O).sup.- X.sup.+X.sup.+ (OSi(R).sub.3).sup.-.sub.nX.sup.+ (SC(O)R).sup.-.sub.nwhere:n is 1 or 2;X is a monovalent or divalent alkali or alkaline earth ion;R is a substituted or unsubstituted alkyl, aryl, allyl, aralkyl or arallyl group that may contain one or more catenary or noncatenary heteroatoms such as nitrogen, sulfur and oxygen, and that may contain linear or branched and cyclic or acyclic segments; R preferably contains no more than about six carbon atoms;R.sub.f is a partially or filly fluorinated, substituted or unsubstituted alkyl, aryl, allyl, aralkyl or arallyl group that also may contain one or more catenary or noncatenary heteroatoms such as nitrogen, sulfur and oxygen, and that may also contain linear or branched and cyclic or acyclic segments; like the above-defined R group, R.sub.f preferably contains no more than about six carbon atoms; andeach Y is independently a hydrogen atom or is an R or R.sub.f group with the proviso that both Y groups are not R.sub.f(2) sodium salt of 4,4'-hexafluoroisopropylidenyl bisphenol, carbonate salts, and sodium sulfide;(b) providing fluoropolymer;(c) forming a multi-layer article comprising a substantially non-fluorinated layer made of the substantially non-fluorinated polymeric material in contact with a fluorinated layer made of the fluoropolymer and exposing the multi-layer article to temperature and pressure conditions sufficient to bond the layers: and(d) applying an adhesive material to at least one outer surface of the multi-layer article.