Ultraviolet light curable compositions for application to porous substrates based on unsaturated polyesters reacted with amino alcohols
US4775597A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 1987 |
| Grant date | Oct 4, 1988 |
| Priority date | — |
| Expiry date | Jun 15, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/3179
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed is a curable filler composition which resists absorption into a porous substrate, particularly one derived from wood, comprising: (1) a liquid, ungelled binder of an unsaturated polyester resin having number average molecular weight of from 500 to 3,000 derived from an ethylenically unsaturated carboxylic acid or anhydride thereof, the unsaturated polyester resin having been reacted with a hydroxyl-containing amine selected from the group consisting of an alkanol amine having a secondary amino group, an alkanol amine having a primary amino group and a mixture thereof, (2) one or more ethylenically unsaturated compounds different from and cocurable with the unsaturated polyester resin, (3) pigment, (4) a free radical initiator, and (5) optionally a carrier solvent for the filler composition. Disclosed is a method of minimizing absorption of a filler composition into a warm or hot porous substrate. Also disclosed is a porous substrate, particularly one derived from wood, having adhered to a surface thereof the cured filler composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.