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:
Jun. 08, 1982
Filed:
Dec. 19, 1979
Harold Kwart, Newark, DE (US);
Seevaram N Varadhachary, Newtown, PA (US);
Other;
Abstract
A method of improving the bond between dissimilar synthetic polymeric materials, such as, for example, a vinyl resin composition or material and a UV curable acrylated polyurethane resin composition or material which comprises: including in the vinyl resin material (1) at least one plasticizer for said vinyl resin, (2) an organic unsaturated chemical compound soluble or dispersible in said vinyl resin composition and of sufficiently low volatility as not to be driven off during heat processing of said synthetic polymeric materials, and (3) a free radical producer or reaction initiator; including in the UV curable acrylated polyurethane resin material a polythiol; bringing the vinyl resin material and the UV curable acrylated polyurethane resin material into contact; and exposing the vinyl resin material and the UV curable acrylated polyurethane material, while in contact, to curing conditions, whereby there is sufficient chemical inter-reaction between these dissimilar synthetic polymeric materials as to create a strong and permanent primary chemical bond therebetween, in addition to any secondary bonds, such as hydrogen bonds and/or attractive van der Waals forces. The present invention also relates to the products involved in and resulting from such methods.