Process for controlling reaction stoichiometry during polymerization of thermoplastic resins
US8426533B2 · kind B2 · utility
1Cited by
1References
26Claims
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Key dates
| Filing date | Dec 19, 2008 |
| Grant date | Apr 23, 2013 |
| Priority date | — |
| Expiry date | Nov 18, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/18
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention provides a process for measuring and controlling chemical reactions that produce thermoplastic polymers by utilizing a stoichiometry correction during a reaction cycle to produce thermoplastic resins with desired properties. The thermoplastic polymer is made from at least one first monomer having a first reactive end group and at least one second monomer having a second reactive end group by reaction of the first reactive end group with the second reactive end group and has a glass transition temperature of greater than 130° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.