Patent ID: 7875344
Filing Date: 2011-01-25
Classification: B32B,C08J,Y10T

Abstract:
1. A steel plate reinforcing sheet comprising: a resin layer comprising a steel-plate-reinforcement resin composition comprising an epoxy resin, an acrylonitrile-butadiene rubber, a curing agent, a foaming agent, and a low polar rubber for enhancing adhesion to an oiled steel plate surface, wherein the low polar rubber comprises styrene-butadiene rubber and polybutene rubber, or styrene-butadiene rubber; and a reinforcing layer laminated on the resin layer; wherein the total thickness of the resin layer and reinforcing layer is in the range of 0.4 to 5 mm; wherein the steel plate reinforcing sheet is adapted for bonding to an oil adhered surface of a steel plate; wherein a weight ratio between the epoxy resin and the acrylonitrile-butadiene rubber is between 70:30 and 95:5, such that the acrylonitrile-butadiene rubber is solid rubber which enhances adhesiveness, handleability and reinforcing effect; wherein the acrylonitrile-butadiene rubber contains 10-50 weight % acrylonitrile; wherein a mixing ratio of the low polar rubber is 1-100 parts by weight per 100 parts by weight of a total of the epoxy resin and the acrylonitrile-butadiene rubber; and wherein the adhesiveness develops in a temperature range of about 5° C. to about 35° C.