Internal softening additives for polyolefin-containing...

Details Internal softening additives for polyolefin-containing... Internal softening additives for polyolefin-containing...

2007-08-28

2007-08-28

Smith, Duane (Department: 1724)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C524S375000, C524S306000, C524S318000, C524S320000, C524S321000, C428S393000, C428S375000, C560S001000, C560S129000

Reexamination Certificate

active

10504798

ABSTRACT:
Methods for imparting softness to polyolefin-containing articles are described wherein the methods comprise: (a) providing at least one compound selected from the group consisting of compounds of the general formula (I) and compounds of the general formula (II):in-line-formulae description="In-line Formulae" end="lead"?A-B-C-B-A  (I)in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?A-B-Acyl  (II)in-line-formulae description="In-line Formulae" end="tail"?wherein each A independently represents a R—C(O)O— group wherein R represents an alkyl group having from 7 to 21 carbon atoms; each B independently represents a —(CnH2nO)k— group wherein n represents a number of from 2 to 4 and k represents a number of from 1 to 15; and C represents an alkylene group having from 2 to 6 carbon atoms; (b) combining the at least one compound and a polyolefin-containing material to form a mixture; and (c) subjecting the mixture to further processing to form an article.

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