Use of di-(cyclohexylethylmethylol) phthalates or di-(ethylcyclohexylmethylol) phthalates as plasticizers for polyvinyl chloride
AssigneeChemische Werke Huls Aktiengesellschaft
InventorsManfred Kaufhold, Dieter Hepp, Gerhard Menzel
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Abstract
In a method of plasticizing polyvinyl chloride by adding a plasticizer to polyvinyl chloride, an improvement is provided wherein the plasticizer is a di-(cyclohexylethylmethylol) phthalate or a di-(ethylcyclohexylmethylol) phthalate of the formula ##STR1## wherein R is ethyl or hydrogen; R.sub.1 is methyl or hydrogen; and n is an integer of 0-2; and when n is 2, R is H and R.sub.1 is H; when n is 0, R is ethyl and R.sub.1 is H, and when n is 1, R.sub.1 is methyl and R is H; the two alcohol radicals being the same or different.
Claims12
In a method of plasticizing polyvinyl chloride by adding a plasticizer to polyvinyl chloride, the improvement wherein the plasticizer is a di-(cyclohexylethylmethylol) phthalate or a di-(ethylcyclohexylmethylol) phthalate of the formula ##STR4## wherein R is ethyl or hydrogen;
- R.sub.1 is methyl or hydrogen;
- and n is an integer of 0-2;
- and when n is 2, R is H and R.sub.1 is H;
- when n is 0, R is ethyl and R.sub.1 is H, and when n is 1, R.sub.1 is methyl and R is H;
- the two ester radicals being the same or different.
A plasticized polyvinyl chloride comprising polyvinyl chloride and a plasticizing amount of a di-(cyclohexylethylmethylol) phthalate or a di(ethylcyclohexylmethylol) phthalate of the formula ##STR5## wherein R is ethyl or hydrogen;
- R.sub.1 is methyl or hydrogen;
- and n is an integer of 0-2;
- and when n is 2, R is H and R.sub.1 is H;
- when n is 0, R is ethyl and R.sub.1 is H, and when n is 1, R.sub.1 is methyl and R is H;
- the two alcohol radicals being the same or different.
A di-(cyclohexylethylmethylol) phthalate or a di-(ethylcyclohexylmethylol) phthalate of the formula ##STR6## wherein R is ethyl or hydrogen;
- R.sub.1 is methyl or hydrogen;
- and n is an integer of 0-2;
- and when n is 2, R is H and R.sub.1 is H;
- when n is 0, R is ethyl and R.sub.1 is H, and when n is 1, R.sub.1 is methyl and R is H;
- the two alcohol radicals being the same or different.
Dependencies are inferred from the claim text.