| US 7,563,838 B2 | ||
| Phase change solvents for thermoplastic polymers | ||
| Mark William Hamersky, Hamilton, Ohio (US); and Steven Daryl Smith, Fairfield, Ohio (US) | ||
| Assigned to The Procter & Gamble Company, Cincinnati, Ohio (US) | ||
| Filed on Sep. 09, 2004, as Appl. No. 10/936,938. | ||
| Application 10/936938 is a continuation in part of application No. 10/429633, filed on May 05, 2003. | ||
| Claims priority of provisional application 60/399841, filed on Jul. 31, 2002. | ||
| Prior Publication US 2005/0032969 A1, Feb. 10, 2005 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. C08K 5/00 (2006.01) | ||
| U.S. Cl. 524—219 [524/239; 524/294; 524/296; 524/297; 524/298] | 6 Claims |
| 1. A composition comprising:
a) from 1 to 99 wt % of a thermoplastic polymer selected from the group consisting of a polyester, a polyamide, a polyether,
a polyurethane, a polycarbonate, a vinyl polymer, a copolymer and a mixture thereof; and
b) from 1 to 70 wt % of a phase change solvent characterized by an AA ratio,
wherein the phase change solvent has the general formula:
R′—Py-(Q-Px)n-1-Q-Py—R; (I)
R′—Py-(Q-Px)n—R; (II)
R′-(Q-Px)n—R; (III)
R′-(Q-Px)n-1-Q-Py—R; (IV-a)
R′-(Q-Px)n-1-Q-R; or (IV-b)
a mixture thereof;
wherein
Q is an unsubstituted or unsubstituted difunctional aromatic moiety;
P is CH2;
R and R′ are the same or different and are independently selected from the group consisting of H, CH3, COOH, CONHR1, CONR1R2, NHR3, NR3R4, hydroxy, and C1-C30 alkoxy; wherein R1, R2, R3 and R4 are the same or different and are independently selected from H or linear or branched alkyl from C1-C30; x is an integer from
1 to 30;
x and y are independently an integer from 1 to 30 and x does not equal y;
n is an integer from 3 to 7 wherein the phase change solvent has a phase change in a temperature range from about 40° C. to
about 250° C.
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