Patent · US Expired

Solventless release compositions, methods and articles of manufacture

US4256870A · kind A · utility

112Cited by
9References
20Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMay 17, 1979
Grant dateMar 17, 1981
Priority date
Expiry dateMay 17, 1999

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/31663
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

A solventless release coating composition is provided as well as a method for rendering materials nonadherent to other materials which would normally adhere thereto. The coating composition is a platinum-metal-complex catalyzed silicone composition comprising a vinyl or silanol functional polysiloxane base polymer and a methylhydrogen crosslinking agent. Diallylmaleate is added to the composition in order to extend the useful shelf-life of the product by inhibiting any premature crosslinking reactions; the useful pot-life at ambient temperatures of the catalyzed composition can also be extended.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.