Patent ID: 9309628
Filing Date: 2016-04-12
CPC Classification: B32B,D21H,Y10T

Claim Text:
1. A wallpaper comprising: a base sheet; and a resin layer formed on the base sheet and including a biodegradable resin, processing aids, and a lubricant, wherein the processing aids include a ter-polymer produced from a monomer mixture having 60 to 86 parts by weight of methyl methacrylate (MMA), 14 to 39.9 parts by weight of alkyl(meth)acrylate other than MMA, and 0.001 to 0.5 parts by weight of a functional monomer selected from the group consisting of aryl(meth)acrylate, a polyfunctional monomer, phenyl meth(acrylate), benzyl(meth)acrylate, 1,3-butylene glycol di(meth)acrylate, 1,4-butylene glycol di(meth)acrylate, divinyl benzene, ethylene glycol di(meth)acrylate and diethylene glycol di(meth)acrylate wherein the processing aids have a relative viscosity in the range of 4.0 cP to 12.0 cP, and wherein the processing aids have a weight average molecular weight of 500,000 to 8,000,000.