Patent · US Expired

Process and composition for the use of substituted melamines as hardeners of novolac resins

US5763558A · kind A · utility

8Cited by
3References
26Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 11, 1996
Grant dateJun 9, 1998
Priority date
Expiry dateJun 11, 2016

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T156/16
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

A process for hardening a composition and a hardenable composition, in wh there are used: PA1 at least one novolac resin; PA1 at least one hardener of the resin, selected from the group consisting of substituted melamines; PA1 at least one compound comprising at least one ##STR1## group, this compound being without methylol group and ether group corresponding to methylol, and/or at least one reagent capable of giving such a compound under the conditions of the hardening. The hardening of the resin is caused by the action of heat.

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