Abstract: Disclosed is a process for crosslinking copolymers of ethylene and acrylic esters by converting some of the ester groups to ester or amide groups which contain unsaturation, and then sulfur or peroxide curing the resulting polymers. The resulting crosslinked polymers often have excellent vulcanizate properties, and are useful especially in elastomeric form as seals and gasket.
Type:
Application
Filed:
July 25, 2002
Publication date:
January 30, 2003
Inventors:
Herbert Vernon Bendler, Gordon Mark Cohen, Clara Young Lin, Robert Louis Dawson, Jerald Rice Harrell, Sampson Chun Fai Lee
Abstract: A variety of phosphonylated heterochain polymers are disclosed, including, most preferably, phosphonylated polymethyl methacrylate. For each polymeric composition the phosphorous atom of a phosphorous-containing functional group is covalently bonded to a carbon atom of the polymeric chain. The phosphorous atoms are present in an amount of at least about 0.1 percent by weight in each polymeric composition.
Abstract: A super absorbent polymer composition comprising a chelating compound (A) which has a site capable of forming a chelate with a copper ion and whose copper salt has a solubility in physiological saline at 25° C. of 0.01% by weight or less and a super absorbent polymer (B), wherein the chelating compound (A) is present in an amount of from 0.0001 to 30 parts by weight per 100 parts by weight of said super absorbent polymer (B).
Abstract: An improved via and contact hole fill composition and method for using the composition in the dual damascene production of circuits is provided. Broadly, the fill compositions include a quantity of solid components including a polymer binder and a solvent system for the solid components. The boiling point of the solvent system is less than the cross-linking temperature of the composition. Preferred solvents for use in the solvent system include those selected from the group consisting of alcohols, ethers, glycol ethers, arnides, ketones, and mixtures thereof. Preferred polymer binders are those having an aliphatic backbone and a molecular weight of less than about 80,000, with polyesters being particularly preferred.
Abstract: A resin composition for powder coating, which comprises the following components (A), (B) and (C):
(A) a carboxyl group-containing resin having a number average molecular weight of from 1,000 to 20,000, an acid value of from 5 to 200 and a glass transition temperature of from 30 to 120° C.;
(B) tris(&bgr;-methylglycidyl) isocyanurate of the formula (1):
(C) as a ring opening polymerization inhibitor, at least one compound selected from the group consisting of amines having in their molecules a bond of the formula (2):
and onium salts.
Abstract: The specification discloses a method for vulcanizing an elastomer using as the cure promoter the monomeric distillate by-product from the clay-based dimerization of an unsaturated fatty acid mixture, preferably a tall oil fatty acid mixture. The distillate provides a cost-effective alternative to conventional fatty acid promoters.
Type:
Grant
Filed:
December 2, 1998
Date of Patent:
October 2, 2001
Assignee:
Arizona Chemical Company
Inventors:
Claude Frank Phillips, Jr., Alexander J. Conte
Abstract: A vinyl graphic marking film or label coated with a pressure sensitive acrylic adhesive designed to achieve high or permanent adhesion to polymeric low energy surfaces is disclosed. In addition to good adhesion to low energy surfaces, the graphic marking film or label may have microperforated or micro-rough edges which initiate tearing when removal is attempted. The article maintains flexibility and film strength for easy fabrication in graphic marking film or label manufacture.
Type:
Grant
Filed:
February 12, 1999
Date of Patent:
August 28, 2001
Assignee:
3M Innovative Properties Company
Inventors:
Richard L. Peloquin, Albert I. Everaerts, Kenneth D. Wilson, Stephen J. Galick
Abstract: The invention relates to polymethacrylate acid-polyalkylene oxide block copolymers, to a process for their preparation and to their use as dispersants or suspension stabilizers for pigments and fillers, e.g. for metal oxides in ceramic materials, for pigments in inks used in ink jet printing and for fillers in thermosplastic and thermoset polymers.
Type:
Grant
Filed:
February 3, 1998
Date of Patent:
June 19, 2001
Assignee:
Th. Goldschmidt AG
Inventors:
Eberhard Esselborn, Jürgen Fock, Arno Knebelkamp