Crosslinked latexes encapsulated with linear polymers
US4515914A · kind A · utility
18Cited by
7References
9Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 19, 1983 |
| Grant date | May 7, 1985 |
| Priority date | — |
| Expiry date | Oct 19, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D151/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Highly coalescence-capable and deformable latexes have a controlled crosslinking density. For example, a styrene/butadiene core is prepared using conventional emulsion polymerization techniques and at a point at which much of the butadiene is converted to polymer a second stage monomer mixture comprising monovinyl monomers is contacted with the initial mixture to yield a latex having a shell region comprising essentially linear polymers which are partially covalently bonded to said core region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.