US4857593A
Expired / Lapsed
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Process for processing thermoplastic polymers
Assignee: OSI Specialties Inc
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Filing: 1988-03-08
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Granted: 1989-08-15
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Expires: 2008-03-08
Abstract
Abstract A process for enhancing the fabrication of thermoplastic polymers entailing the addition of from 0.01 to 1 part, per hundred parts of thermoplastic polymer, of a processing aid, said processing aid comprising a processing additive, such as a silicone or a polyol, and a processing adjuvant, such as a phosphate.
Inventors
- 👤 Pak S. Leung
- 👤 Errol D. Goddard
- 👤 Fred H. Ancker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:31
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08K; C08K5/00; C08K5/0008; C08K5/0016; C08L101/00
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
147 words
A process for improving the processing of thermoplastic polymers in fabrication equipment which comprises adding to the thermoplastic polymer from 0.01 to 1 part, per hundred parts of thermo polymer, of a mixture comprising: (a) a processing additive, said processing additive being a polymeric material with a molecular weight ranging from 500 to 100,000, and having on its molecule at least two monofunctional groups selected from the group consisting of hydroxy, alkoxy, epoxy carboxy and amino groups, and (b) a processing adjuvant, said processing adjuvant being a molecule having at least two monofunctional groups or at least one multifunctional group wherein at least one functional group provides preferential adsorption over the processing additive for the fabrication surface and wherein at least one other functional group is capable of bonding with the processing additive, wherein (a) and (b) are present in a ratio of from 1 to 1:20.
Claim 2
Dependent Claim
147 words
A process for improving the processing of thermoplastic polymers in fabrication equipment which comprises adding to the thermoplastic polymer from 0.01 to 1 part, per hundred parts of thermo polymer, of a mixture comprising: (a) a processing additive, said processing additive being a polymeric material with a molecular weight ranging from 500 to 100,000, and having on its molecule at least two monofunctional groups selected from the group consisting of hydroxy, alkoxy, epoxy carboxy and amino groups, and (b) a processing adjuvant, said processing adjuvant being a molecule having at least two monofunctional groups or at least one multifunctional group wherein at least one functional group provides preferential adsorption over the processing additive for the fabrication surface and wherein at least one other functional group is capable of bonding with the processing additive, wherein (a) and (b) are present in a ratio of from 1 to 1:20.
Claim 3
Dependent Claim
22 words
The process of claim 1 wherein from 0.02 to 0.2 part, per hundred parts of thermoplastic polymer, of the mixture is added.
Claim 4
Dependent Claim
18 words
The process of claim 1 wherein the processing additive has a molecular weight ranging from 1,000 to 20,000.
Claim 5
Dependent Claim
30 words
The process of claim 1 wherein the processing additive is selected from the group consisting of polyether polyols, silicone polyether block copolymers, polyamines, polycarboxylic acids, polycarboxylic anhydrides and epoxy resins.
Claim 6
Dependent Claim
44 words
The process of claim 1 wherein the processing adjuvant is selected from the group consisting of organo derivatives of carboxylates, phosphates, thiophosphates, phosphonates, sulfates, phosphonic acids, carboxylic acids, sulfites, phosphorous acids, phosphoric acids, sulfuric acids, carboxylic anhydrides, sulfonic acids, sulfonates, phosphites, thiophosphites and ammonia.
Claim 7
Dependent Claim
23 words
The process of claim 1 wherein the processing additive and the processing adjuvant are employed in a weight ration of 2:1 to 1:2.
Claim 8
Dependent Claim
26 words
The process of claim 1 wherein the processing additive is a silicone polyether block copolymer and the processing adjuvant is an organoderivative containing a phosphorus atom.
Claim 9
Dependent Claim
24 words
The process of claim 1 wherein the processing additive is a polyether polyol and the processing adjuvant is an organoderivative containing a phosphorus atom.
Claim 10
Dependent Claim
12 words
The process of claim 1 wherein the thermoplastic polymer is a polyolefin.
Claim 11
Dependent Claim
60 words
A process for improving the processing of thermoplastic polymers in fabrication equipment which, comprises adding to the thermoplastic polymer from 0.01 to 1 part, per hundred parts of thermoplastic polymer, of a mixture comprising: (a) a fluoroelastomer, and (b) an organo derivative containing a phosphorus atom. wherein (a) and (b) are present in a ratio of from 50:1 to 1:20.
Claim 12
Dependent Claim
60 words
A process for improving the processing of thermoplastic polymers in fabrication equipment which, comprises adding to the thermoplastic polymer from 0.01 to 1 part, per hundred parts of thermoplastic polymer, of a mixture comprising: (a) a fluoroelastomer, and (b) an organo derivative containing a phosphorus atom. wherein (a) and (b) are present in a ratio of from 50:1 to 1:20.
Claim 13
Dependent Claim
170 words
A process for improving the processing of thermoplastic polymers in fabrication equipment which comprises adding to the thermoplastic polymer from 0.01 to 1 part, per hundred parts of thermoplastic polymer, of a mixture comprising: (a) a silicone containing material having the formula: ##STR6## wherein R is an alkyl group containing from 1 to 12 carbon atoms, R is a monovalent organic group containing at least one alkylene oxide unit and an alkoxy, hydroxy, epoxy, carboxy or amino group; x has a value of at least 1 to 500, and y has a value of from 2 to 300, and (b) an organo derivative having at least one group having the formula: ##STR7## wherein Z is either an oxygen or sulfur atom, n is 0 or 1, and R" is selected from the group consisting of R''', ZR''', and ZH where R is an alkyl, aryl, alkenyl or alkynyl group containing from 1 to 24 carbon atoms, wherein (a) and (b) are present in a ratio of from 50:1 to 1:20.
Claim 14
Dependent Claim
170 words
A process for improving the processing of thermoplastic polymers in fabrication equipment which comprises adding to the thermoplastic polymer from 0.01 to 1 part, per hundred parts of thermoplastic polymer, of a mixture comprising: (a) a silicone containing material having the formula: ##STR6## wherein R is an alkyl group containing from 1 to 12 carbon atoms, R is a monovalent organic group containing at least one alkylene oxide unit and an alkoxy, hydroxy, epoxy, carboxy or amino group; x has a value of at least 1 to 500, and y has a value of from 2 to 300, and (b) an organo derivative having at least one group having the formula: ##STR7## wherein Z is either an oxygen or sulfur atom, n is 0 or 1, and R" is selected from the group consisting of R''', ZR''', and ZH where R is an alkyl, aryl, alkenyl or alkynyl group containing from 1 to 24 carbon atoms, wherein (a) and (b) are present in a ratio of from 50:1 to 1:20.
Claim 15
Dependent Claim
22 words
The process of claim 11 wherein from 0.02 to 0.2 part, per hundred parts of thermoplastic polymer, of the mixture is added.
Claim 16
Dependent Claim
19 words
The process of claim 11 wherein the silicone containing material has a molecular weight ranging from 1,000 to 20,000.
Claim 17
Dependent Claim
18 words
The process of claim 11 wherein R is an alkyl group containing from 1 to 4 carbon atoms.
Claim 18
Dependent Claim
14 words
The process of claim 11 wherein x has a value of 10 to 200.
Claim 19
Dependent Claim
14 words
The process of claim 11 wherein y has a value of 2 to 20.
Claim 20
Dependent Claim
38 words
The process of claim 11 wherein R is methyl, R' is C 3 H 6 (OC 2 H 4 ) a OH, x is 50 to 100, y is 4 to 6, and a is 5 to 10.
Claim 21
Dependent Claim
11 words
The process of claim 11 wherein (b) is dodecane phosphonic acid.
Claim 22
Dependent Claim
10 words
The process of claim 11 wherein (b) is zinc dithiophosphate.
Claim 23
Dependent Claim
12 words
The process of claim 11 wherein (b) is an acid phytate salt.
Claim 24
Dependent Claim
10 words
The process of claim 11 wherein (b) is phytic acid.
Claim 25
Dependent Claim
18 words
The process of claim 11 wherein (a) and (b) are present in a ratio of 2:1 to 1:2.
Claim 26
Dependent Claim
12 words
The process of claim 11 wherein the thermoplastic polymer is a polyolefin.
Claim 27
Dependent Claim
11 words
The process of claim 23 wherein the polyolefin is a polyethylene.
Claim 28
Dependent Claim
13 words
The process of claim 11 wherein the fabrication equipment is a film extruder.
Claim 29
Dependent Claim
13 words
The process of claim 11 wherein the fabrication equipment is an injection molder.
Claim 30
Dependent Claim
10 words
The process of claim 11 wherein (b) is poly(oxy-1,2-ethanediyl), alpha-(nonylphenyl)-omega-hydroxy-phosphate.
Claim 31
Dependent Claim
12 words
The process of claim 11 wherein (b) is a polyether acid phosphate.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-08-14 | 1993-02-13 | 1993-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-08-14 | 1997-02-13 | 1997-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-08-14 | 2001-02-13 | 2001-08-15 | $7700.00 | Window Closed / Lapsed |