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 hydrogenated polybutadiene, poly(2,2 dimethyl-1-3-propylcarbonate), or poly(diethylene glycol)adipate;
(ii) B is a hard segment comprising a urethane formed from a diisocyanate selected from;
4,4′
-methylene bis(cyclohexyl isocyanate);
3-isocyanatomethyl, 3,5,5-trimethyl cyclohexylisocyanate;
m-tetramethylxylene diisocyanate; and
hexamethylene diisocyanate; and
(iii) G is a surface active group,wherein n is an integer from 1 to 10,and wherein said surface modifier has a thermal degradation temperature of at least 240°
C. 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.
36 Citations
32 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 hydrogenated polybutadiene, poly(2,2 dimethyl-1-3-propylcarbonate), or poly(diethylene glycol)adipate; (ii) B is a hard segment comprising a urethane formed from a diisocyanate selected from;
4,4′
-methylene bis(cyclohexyl isocyanate);
3-isocyanatomethyl, 3,5,5-trimethyl cyclohexylisocyanate;
m-tetramethylxylene diisocyanate; and
hexamethylene diisocyanate; and(iii) G is a surface active group, wherein n is an integer from 1 to 10, and wherein said surface modifier has a thermal degradation temperature of at least 240°
C. 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, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification