US4839409A — Stabilizers for rigid halogen-containing organic …

Claim 1

Independent Claim 108 words

A composition for stabilizing rigid halogen-containing organic polymers against the deteriorative effects of heat, ultra-violet light and weathering, said composition comprising a mixture of: (a) an organotin or non-tin metal salt primary heat stabilizer; and (b) in an amount sufficient to synergize the stabilization of the halogen-containing organic polymer but insufficient to plasticize said polymer, an ester of a polyhydrocarbyl ether glycol of the formula: ##STR36## wherein R 4 is selected from the group consisting of alkylene, alkenylene, cycloalkylene and cycloalkenylene, R 8 is selected from the groups consisting of alkyl, alkenyl, cycloalkyl and cycloalkenyl, R 15 is ##STR37## and m is an integer of 2 or more.

Claim 2

Dependent Claim 108 words

A composition for stabilizing rigid halogen-containing organic polymers against the deteriorative effects of heat, ultra-violet light and weathering, said composition comprising a mixture of: (a) an organotin or non-tin metal salt primary heat stabilizer; and (b) in an amount sufficient to synergize the stabilization of the halogen-containing organic polymer but insufficient to plasticize said polymer, an ester of a polyhydrocarbyl ether glycol of the formula: ##STR36## wherein R 4 is selected from the group consisting of alkylene, alkenylene, cycloalkylene and cycloalkenylene, R 8 is selected from the groups consisting of alkyl, alkenyl, cycloalkyl and cycloalkenyl, R 15 is ##STR37## and m is an integer of 2 or more.

Claim 3

Dependent Claim 26 words

A composition of claim 1 wherein the ester of a polyhydrocarbyl ether glycol is one of which R 4 is alkylene and R 8 is alkyl.

Claim 4

Dependent Claim 35 words

A composition of claim 1 wherein the ester of a polyhydrocarbyl ether glycol is an alkyl ester of a polyalkyl ether glycol selected from the group consisting of polyethylene glycol, triethylene glycol and tetraethylene glycol.

Claim 5

Dependent Claim 35 words

A composition of claim 2 wherein the primary heat stabilizer is an organotin compound or mixture of organotin compounds selected from the group consisting of an organotin sulfides, organotin mercaptides, organotin carboxylates and mixtures thereof.

Claim 6

Dependent Claim 33 words

A composition of claim 2 wherein the primary heat stabilizer a non-tin metal salt or mixtures thereof selected from the group consisting of barium, calcium, cadmium, zinc and antimony salts and mixtures thereof.

Claim 7

Dependent Claim 28 words

A composition of claim 4 wherein the organotin compound is selected from dimethyltin bis(isooctylthioglycolate), monomethyltin tris(isooctylthioglycolate), bis(monomethyltin di(2-mercaptoethyloleate)) sulfide, bis(dimethyltin (2-mercaptoethyloleate) sulfide, dibutyltin bis(butyl maleate) and mixtures thereof.

Claim 8

Dependent Claim 26 words

A composition of claim 5 wherein the non-tin metal salt is selected from the group consisting of antimony tris(isooctylthioglycolate), barium/cadmium, calcium/zinc, barium/zinc and barium/cadmium/zinc salts mixtures.

Claim 9

Dependent Claim 18 words

A composition of claim 7 wherein the primary heat stabilizer is a mixture of barium di(octylphenolate) and cadmium-2-ethylhexoate.

Claim 10

Dependent Claim 25 words

A composition of claim 2 wherein the weight ratio of the primary heat stabilizer to the ester compound is from about 1/1 to about 1/4.

Claim 11

Dependent Claim 24 words

A composition of claim 9 wherein the weight ratio of the primary heat stabilizer to ester compound is from about 2/3 to about 3/4.

Claim 12

Dependent Claim 118 words

A composition comprising a rigid halogen-containing organic polymer and, in an amount sufficient to stabilize said polymer against the deteriorative effects of heat, ultra-violet light and weathering, a stabilizer composition comprising a mixture of: (a) an organotin or non-tin metal salt primary heat stabilizer; and (b) in an amount sufficient to synergize the stabilization of the halogen-containing organic polymer but insufficient to plasticize said polymer, an ester of a polyhydrocarbyl ether glycol of the formula: ##STR38## wherein R 4 is selected from the group consisting of alkylene, alkenylene, cycloalkylene and cycloalkenylene, R 8 is selected from the groups consisting of alkyl, alkenyl, cycloalkyl and cycloalkenyl, R 15 is ##STR39## and m is an integer of 2 or more.

Claim 13

Dependent Claim 118 words

A composition comprising a rigid halogen-containing organic polymer and, in an amount sufficient to stabilize said polymer against the deteriorative effects of heat, ultra-violet light and weathering, a stabilizer composition comprising a mixture of: (a) an organotin or non-tin metal salt primary heat stabilizer; and (b) in an amount sufficient to synergize the stabilization of the halogen-containing organic polymer but insufficient to plasticize said polymer, an ester of a polyhydrocarbyl ether glycol of the formula: ##STR38## wherein R 4 is selected from the group consisting of alkylene, alkenylene, cycloalkylene and cycloalkenylene, R 8 is selected from the groups consisting of alkyl, alkenyl, cycloalkyl and cycloalkenyl, R 15 is ##STR39## and m is an integer of 2 or more.

Claim 14

Dependent Claim 27 words

A compositions according to claim 11 wherein the ester of a polyhydrocarbyl ether glycol is one in which R 4 is alkylene and R 8 is alkyl.

Claim 15

Dependent Claim 36 words

A composition according to claim 11 wherein the ester of a polyhydrocarbyl ether glycol is an alkyl ester of a polyalkyl ether glycol selected from the group consisting of polyethylene glycol, triethylene glycol and tetraethylene glycol.

Claim 16

Dependent Claim 34 words

A composition according to claim 11 wherein the primary heat stabilizer a non-tin metal salt or mixtures thereof selected from the group consisting of barium, calcium, cadmium, zinc and antimony salts and mixtures thereof.

Claim 17

Dependent Claim 29 words

A composition according to claim 11 wherein the organotin compound is selected from dimethyltin bis(isooctylthioglycolate), monomethyltin tris(isooctylthioglycolate), bis(monomethyltin di(2-mercaptoethyloleate)) sulfide, bis(dimethyltin (2-mercaptoethyloleate)) sulfide, dibutyltin bis(butyl maleate) and mixtures thereof.

Claim 18

Dependent Claim 27 words

A composition according to claim 11 wherein the non-tin metal salt is selected from the group consisting of antimony tris(isooctylthioglycolate), barium/cadmium, calcium/zinc, barium/zinc and barium/cadmium/zinc salts mixtures.

Claim 19

Dependent Claim 19 words

A composition according to claim 11 wherein the primary heat stabilizer is a mixture of barium di(octylphenolate) and cadmium-2-ethylhexoate.

Claim 20

Dependent Claim 26 words

A composition according to claim 11 wherein the weight ratio of the primary heat stabilizer to the ester compound is from about 1/1 to about 1/4.

Claim 21

Dependent Claim 25 words

A composition according to claim 11 wherein the weight ratio of the primary heat stabilizer to ester compound is from about 2/3 to about 3/4.

Claim 22

Dependent Claim 29 words

A composition according to claim 12 which contains from about 1.0 to about 5.0 weight % of the stabilizer composition based on the weight of the halogen-containing organic polymer.

Claim 23

Dependent Claim 17 words

A composition of claim 12 in which the halogen-containing organic polymer is a rigid polyvinyl chloride polymer.

Claim 24

Dependent Claim 17 words

A composition of claim 20 in which the halogen-containing organic polymer is a rigid polyvinyl chloride polymer.

Claim 25

Dependent Claim 115 words

A process for stabilizing a rigid halogen-containing organic polymer against the deteriorative effects of heat, ultra-violet light and weathering comprising admixing with said halogen-contaning organic polymer a stabilizing effective amount of: (a) an organotin or non-tin metal salt primary heat stabilizer; and (b) in an amount sufficient to synergize the stabilization of the halogen-containing organic polymer but insufficient to plasticize said polymer, an ester of a polyhydrocarbyl ether glycol of the formula: ##STR40## wherein R 4 is selected from the group consisting of alkylene, alkenylene, cycloalkylene and cycloalkenylene, R 8 is selected from the groups consisting of alkyl, alkenyl, cycloalkyl and cycloalkenyl, R 15 is ##STR41## and m is an integer of 2 or more.

Claim 26

Dependent Claim 115 words

A process for stabilizing a rigid halogen-containing organic polymer against the deteriorative effects of heat, ultra-violet light and weathering comprising admixing with said halogen-contaning organic polymer a stabilizing effective amount of: (a) an organotin or non-tin metal salt primary heat stabilizer; and (b) in an amount sufficient to synergize the stabilization of the halogen-containing organic polymer but insufficient to plasticize said polymer, an ester of a polyhydrocarbyl ether glycol of the formula: ##STR40## wherein R 4 is selected from the group consisting of alkylene, alkenylene, cycloalkylene and cycloalkenylene, R 8 is selected from the groups consisting of alkyl, alkenyl, cycloalkyl and cycloalkenyl, R 15 is ##STR41## and m is an integer of 2 or more.

Claim 27

Dependent Claim 27 words

A process according to claim 23 wherein the ester of a polyhydrocarbyl ether glycol is one in which R 4 is alkylene and R 8 is alkyl.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1992-06-12	1992-12-12	1993-06-13	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1996-06-12	1996-12-12	1997-06-13	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2000-06-12	2000-12-12	2001-06-13	$7700.00	Window Closed / Lapsed

Stabilizers for rigid halogen-containing organic polymers comprising a primary heat stabilizer and an ester of a polyhydrocarbyl ether glycol

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