Abstract: A hot-melt adhesive produced from a number of polymers which have been at least partially cross-linked and which may be applied to a suitable carrier as a melt.
Abstract: A flame-retardant pressure-sensitive adhesive composition that is compatible with enameled magnet wire is provided by adding to a base adhesive material certain halogenated organic compounds, such as decabromodiphenyl oxide, which exhibit little halogen or other loss upon exposure to elevated temperature.
Type:
Grant
Filed:
June 25, 1976
Date of Patent:
December 6, 1977
Assignee:
Minnesota Mining and Manufacturing Company
Abstract: A novel cured pressure-sensitive adhesive-coated sheet material comprising a flexible backing having bonded thereto a pressure-sensitive adhesive material containing copolymers of 2-ethyl hexyl acrylate, butyl acrylate and glycidyl acrylate or glycidyl methacrylate. The monomer-mixture for the pressure-sensitive adhesive material may also contain minor amounts of monomers with acid anhydride groups or monomers with carboxyl groups. The curing of the pressure-sensitive adhesive material is accomplished by heating the copolymers to a temperature between 60.degree. and 100.degree. C., in the presence of a zinc chloride catalyst whereby the copolymers become cross-linked to obtain a solvent-, heat- and weather-resistant pressure-sensitive adhesive-coated sheet material.
Type:
Grant
Filed:
September 16, 1974
Date of Patent:
July 26, 1977
Assignee:
Beiersdorf Aktiengesellschaft
Inventors:
G. W. Horst Lehmann, H. A. Julius Curts
Abstract: Pressure-sensitive adhesives having improved cohesive strength are obtained by reacting an acrylic interpolymer containing an interpolymerized acrylic monomer containing an ethylenically unsaturated carboxylic acid anhydride with a metal alkoxide, chelated metal alkoxides such as chelated titanium esters being particularly preferred. Adhesives produced in this manner have improved cohesive strength on backings while maintaining good tack and adhesive properties.
Abstract: A typewriter correction tape adapted to lift off an erroneous typewritten character from the paper on which it was typed including an impact compressible material coated on a substrate film, and method of manufacture thereof.
Abstract: A decorative molding having its body and under surface formed of a thermoplastic material which is bondable dielectrically with compatible materials carries bonded to such under surface a longitudinally extending composite fabric tape of a width less than that of the molding, the tape having on its underside a heat reactive adhesive compatible with and bondable to materials with which the body itself is incompatible.
Abstract: A copolymer of 2,4-dimethyl-4-vinyl-1-cyclohexene and at least one member of the group consisting of 2,6- and 3,6-dimethyl-1,3,6-octatrienes, which copolymer is suitable for use as a tackifier, said copolymer consisting essentially of (A) structural units derived from 2,4-dimethyl-4-vinyl-1-cyclohexene and (B) structural units derived from at least one member selected from the group consisting of 2,6- and 3,6-dimethyl-1,3,6-octatriene in proportions of 100 moles of (A) to 1 to 400 moles of (B) and characterized by containing not more than seven unsaturated double bonds per 100 carbon atoms contained in its molecule and having a softening point of 85.degree.-160.degree.C. and an average molecular weight of 450-1850 is disclosed.
Type:
Grant
Filed:
August 19, 1974
Date of Patent:
February 17, 1976
Assignee:
Mitsui Petrochemical Industries, Inc.
Inventors:
Hiroyuki Morikawa, Tosio Sugimoto, Kazuo Sato