Curable composition comprising spiro-orthoester compound
US4368314A · kind A · utility
17Cited by
5References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 24, 1981 |
| Grant date | Jan 11, 1983 |
| Priority date | — |
| Expiry date | Aug 24, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G63/66
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A curable composition comprising: PA1 (A) at least one spiro-orthoester compound having at least one spiro-orthoester group represented by the formula: [I] ##STR1## wherein n is an integer of 3-5, (B) at least one curing agent selected from the group consisting of organic polybasic acids and their anhydrides, PA1 (C) optionally, an epoxy compound having at least one epoxy group, and PA1 (D) optionally a cationic polymerization catalyst when the composition comprises ingredient (C). Said composition is small in shrinkage on curing, and provides a cured product of high dimensional accuracy when used as a molding material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.