The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 12, 1997
Filed:
Jun. 07, 1995
Richard M Strand, Hampstead, NH (US);
Paul C Briggs, Beverly, MA (US);
Illinois Tool Works, Inc., Glenview, IL (US);
Abstract
A high strength conduit for carrying potable water at temperatures of up to about 180.degree. F. comprising a first tubular member having a mating end portion formed from polyvinyl chloride, a second tubular member having a mating end portion also formed from polyvinyl chloride, telescopically received in the mating portion of the first tubular member, a cured adhesive composition joining said mating end portions of the first and second tubular members. The cured adhesive composition is formed from a curable composition comprising a minor proportion by weight of a thermoplastic elastomeric copolymer comprising from about 40 to about 97 weight percent of recurring units of a monovinyl aromatic monomer, from about 1 to about 30 weight percent of recurring units of an .alpha.,.beta.-unsaturated dicarboxylic acid anhydride, from about 1 to about 30 weight percent of recurring units of an .alpha.,.beta.-unsaturated carboxylic acid, and from about 1 to about 40 weight percent of recurring units of a C.sub.1 -C.sub.4 alkyl ester of methacrylic acid. On the basis of 100 parts of the thermoplastic elastomeric copolymer of (a), from about 1 to about 35 parts by weight of an elastomer comprising a block copolymer of butadiene and styrene is also included. The composition also includes major proportion by weight of reactive solvent for the thermoplastic copolymer, such as methyl methacrylate monomer, and a catalyst for said reactive solvent.