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US 4,061,612 AGranted
Low temperature plasticizers for specialty rubbers consisting of diesters of dicarboxylic acids with hexyloxyethoxyethanol or butoxyethoxyethoxyethanol
AssigneeThiokol Corporation
InventorsEugene R. Bertozzi, Robert F. Hoffman, Robert Barclay
Life of this patent
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Abstract
Diesters of succinic, glutaric, adipic, and phthalic acid with hexyloxyethoxyethanol or butoxyethoxyethoxyethanol are disclosed. They are useful as plasticizers with extended temperature ranges in elastomers.
Claims17
A composition of matter of the formula:
- ##STR4## wherein R is --(CH.sub.2).sub.3, --(CH.sub.2).sub.4, ##STR5## a mixture of --(CH.sub.2).sub.3 and --(CH.sub.2).sub.4 --, or a mixture of --(CH.sub.2).sub.2, --(CH.sub.2).sub.3 --, and --(CH.sub.2).sub.4 --;
- and n and m are 3, or n is 2 and m is 5.
An elastomeric composition having solvent resistance, high temperature stability, and extended low temperature properties which comprises:
- a. An effective amount of a composition of matter of the formula:
- ##STR7## wherein R is --(CH.sub.2).sub.3, --(CH.sub.2).sub.4, ##STR8## a mixture of --(CH.sub.2).sub.3 and --(CH.sub.2).sub.4 --, or a mixture of --(CH.sub.2).sub.2, --(CH.sub.2).sub.3 --, and --(CH.sub.2).sub.4 --;
- and n and m are 3, or n is 2 and m is 5;
- and
- b. a specialty rubber.
2 more elements
In a process for compounding an elastomeric composition containing a plasticizer having solvent resistance, high temperature stability and extended low temperature properties the improvement which comprises:
- compounding a specialty rubber with a compound of the formula:
- ##STR9## wherein R is --(CH.sub.2).sub.3, --(CH.sub.2).sub.4, ##STR10## a mixture of --(CH.sub.2).sub.3 and --(CH.sub.2).sub.4 --, or a mixture of --(CH.sub.2).sub.2, --(CH.sub.2).sub.3 --, and --(CH.sub.2).sub.4 --;
- and n and m are 3, or n is 2 and m is 5 as the plasticizer.
Dependencies are inferred from the claim text.