Surface modifying macromolecules with high degradation temperatures and uses thereof
First Claim
Patent Images
1. A surface modifier of formula (I):
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G-[B-A]n-B-G
(I)wherein(i) A is a soft segment comprising poly(hexamethylene carbonate)diol (PHCN);
poly(ethylene-co-butylene)diol (PEB);
1,6-hexanediol-orthophthalic anhydride polyester polyol (SPH);
or neopentyl glycol-ortho phthalic anhydride polyester polyol (SPN);
(ii) B is a hard segment comprising a urethane formed from a diisocyanate selected from 4,4′
-methylene bis(cyclohexyl isocyanate)(HMDI);
isophorone diisocyanate (IPDI);
or m-tetramethylxylene diisocyanate (TMXDI); and
(iii) G is a polyfluoroalkyl group;
wherein n is an integer from 1 to 10,and wherein said surface modifier has a theoretical molecular weight of less than 10,000 Daltons.
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Abstract
The invention relates to surface modifying macromolecules (SMMs) having high degradation temperatures and their use in the manufacture of articles made from base polymers which require high temperature processing. The surface modifier is admixed with the base polymer to impart alcohol and water repellency properties.
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Citations
20 Claims
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1. A surface modifier of formula (I):
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G-[B-A]n-B-G
(I)wherein (i) A is a soft segment comprising poly(hexamethylene carbonate)diol (PHCN);
poly(ethylene-co-butylene)diol (PEB);
1,6-hexanediol-orthophthalic anhydride polyester polyol (SPH);
or neopentyl glycol-ortho phthalic anhydride polyester polyol (SPN);(ii) B is a hard segment comprising a urethane formed from a diisocyanate selected from 4,4′
-methylene bis(cyclohexyl isocyanate)(HMDI);
isophorone diisocyanate (IPDI);
or m-tetramethylxylene diisocyanate (TMXDI); and(iii) G is a polyfluoroalkyl group; wherein n is an integer from 1 to 10, and wherein said surface modifier has a theoretical molecular weight of less than 10,000 Daltons. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification