Patent classifications
C
CHEMISTRY; METALLURGY
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C08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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C08G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
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65/00
Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
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C08G65/02
from cyclic ethers by opening of the heterocyclic ring
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C08G65/32
Polymers modified by chemical after-treatment
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C08G65/3351
having phosphorus bound to carbon and hydrogen
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C08G65/3351

Reactive surfactants for freeze-thaw stable emulsion polymers and coatings thereof
10934393 · 2021-03-02 · ·

The invention provides aqueous coating composition having freeze thaw stability, comprising: (a) at least one latex polymer derived from at least one monomer and at least one reactive surfactant of the formula
R.sub.1O(CH.sub.2CHR.sub.2O).sub.x(CH.sub.2CH.sub.2O).sub.y(CH.sub.2CHR.sub.3O).sub.zR.sub.4
where R.sub.1 is either alkyl, aryl, alkylaryl, or aralkylaryl of 8-30 carbon atoms, R.sub.2 is CH.sub.2OCH.sub.2CHCH.sub.2 (AGE); R.sub.3 is either H, CH.sub.3, or CH.sub.2CH.sub.3; R.sub.4 is H or SO3M or PO3M where M is H or K, Na, NH.sub.4, NR.sub.4, alkanolamine, or other cationic species and x=2-100; y=4-200 and z=0-50.

NOVEL (PER)FLUOROPOLYETHER POLYMERS
20190106538 · 2019-04-11 ·

The present invention relates to novel (per)fluoropolyether polymers and their use as lubricants, in particular for Magnetic Recording Media (MRM).