Vinyl ester resins containing polyoxyalkylene low profile additives
US4151219A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 1978 |
| Grant date | Apr 24, 1979 |
| Priority date | — |
| Expiry date | Apr 26, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L63/10
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Low shrink and low profile reinforced plastic systems are prepared from vinyl ester resins by incorporating therein an additive having the formula: ##STR1## WHEREIN R.sub.1 and R.sub.2 are hydrogen, methyl or ethyl with the provision that, if either R.sub.1 or R.sub.2 is hydrogen, the other is methyl or ethyl, n and m are whole numbers such that said additive is soluble in said resin when uncured and insoluble in said resin when cured; and B is the residue of a hydroxyl containing initiating compound. Typical of such compounds are water, ethylene glycol, glycerine and phenol. The value of p is equal to or less than the number of hydroxyls in the initiating compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.