Polyurethane composition with (meth)acrylate end groups useful in the manufacture of polishing pads
US5965460A · kind A · utility
27Cited by
29References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 29, 1997 |
| Grant date | Oct 12, 1999 |
| Priority date | — |
| Expiry date | Jan 29, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/672
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Particular polyurethane photopolymers are disclosed as materials of construction in producing improved polishing pads. The polyurethane photopolymers are formed from a polyurethane prepolymer prepared from the reaction products of a first reactant selected from the group consisting of polyesters, polyethers, polybutadienes and mixtures of the foregoing with diisocyanates, further reacted with acrylates and/or methacrylates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.