US4385136A
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Reinforcement promoters for filled thermoplastic polymers
Assignee: Union Carbide Corp
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Filing: 1981-08-27
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Granted: 1983-05-24
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Expires: 2001-08-27
Abstract
Abstract A reinforced, filled thermoplastic polymer composition, having increased strength and ductility, contains a reinforcement promoter having at least two reactive olefinic double bonds and a positive promoter index, based on the double bond resonance and polarity, and the promoter adsorptivity.
Inventors
- 👤 Fred H. Ancker
- 👤 Arnold C. Ashcraft, Jr.
- 👤 Martin S. Leung
- 👤 Audrey Y. Ku
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:19
CPC Classifications
C; C08; C08K; C08K9/00; C08K9/04; C08L; C08L23/00; C08L23/02
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
183 words
A polymer composition substantially free of a free radical initiator or its residue comprising a thermoplastic polymer, selected from the groups consisting normally of solid hydrocarbon polymers, polyamides and polyvinyl chlorides including the copolymers of the latter with vinyl acetate and an inorganic filler having an average particle size <100 μm wherein the improvement comprises providing about 0.1 to 5 weight % based on the weight of the total composition of a reinforcement promoter having at least two reactive olefinic double bonds, said promoter being characterized by having a promoter index, P, being greater than zero, which is defined by the formula: P=n(n-1)Q(e+2)(1-2R°.sub.f)-2.5 wherein n is the number of olefinic double bonds in the promoter, having values ≧2, Q and e are the Alfrey-Price resonance and polarity parameters, respectively, of at least one of the olefinic double bonds in the compound, wherein Q≧2 and e ≧2 but<4, and R° f , having values≧0 to≦0.5, is the relative flow ratio of the promoter measured by thin layer chromatography on a neutral silica gel using xylene as the eluant and di-n-butyl fumarate as the standard.
Claim 2
Dependent Claim
183 words
A polymer composition substantially free of a free radical initiator or its residue comprising a thermoplastic polymer, selected from the groups consisting normally of solid hydrocarbon polymers, polyamides and polyvinyl chlorides including the copolymers of the latter with vinyl acetate and an inorganic filler having an average particle size <100 μm wherein the improvement comprises providing about 0.1 to 5 weight % based on the weight of the total composition of a reinforcement promoter having at least two reactive olefinic double bonds, said promoter being characterized by having a promoter index, P, being greater than zero, which is defined by the formula: P=n(n-1)Q(e+2)(1-2R°.sub.f)-2.5 wherein n is the number of olefinic double bonds in the promoter, having values ≧2, Q and e are the Alfrey-Price resonance and polarity parameters, respectively, of at least one of the olefinic double bonds in the compound, wherein Q≧2 and e ≧2 but<4, and R° f , having values≧0 to≦0.5, is the relative flow ratio of the promoter measured by thin layer chromatography on a neutral silica gel using xylene as the eluant and di-n-butyl fumarate as the standard.
Claim 3
Dependent Claim
15 words
The composition of claim 1 wherein the thermoplastic polymer is a hydrocarbon homopolymer or copolymer.
Claim 4
Dependent Claim
21 words
The composition of claim 2 wherein the hydrocarbon polymer is a polyolefin homopolymer or copolymer, or a natural or synthetic rubber.
Claim 5
Dependent Claim
72 words
The composition of claim 1 wherein the reinforcement promoter has the structure: ##STR18## wherein R 1 is an organic group free of olefinic or acetylenic unsaturation having a valence of n; R 2 , R 3 and R 4 are hydrogen, carboxy or monovalent organic groups free of olefinic or acetylenic unsaturation; X is: ##STR19## m has a value of 0 or 1; and n has a value of at least two.
Claim 6
Dependent Claim
43 words
The composition of claim 4 wherein the reinforcement promoter has an R' or X group, for when m is 1 or 0, respectively, which contains a double or triple bond which is in conjugation with the olefinic bond and which is electron withdrawing.
Claim 7
Dependent Claim
40 words
The composition of claim 1 wherein the reinforcement promoter is a condensation product of an acrylic or maleamic acid with an aliphatic, aromatic or heterocyclic polyol; or an acrylamide, maleimide or maleamic acid of an aliphatic, aromatic or heterocyclic polyamine.
Claim 8
Dependent Claim
19 words
The composition of claim 6 wherein the reinforcement promoter compound is an imide, maleate, acrylate, or acryloyl heterocyclic compound.
Claim 9
Dependent Claim
23 words
The composition of claim 7 wherein the reinforcement promoter is epoxidized linseed oil/acrylate, 1,3,5-triacryloylhexahydro-s-triazine, melamine triacrylate or maleamic acid derivatives of methylene-aniline oligomers.
Claim 10
Dependent Claim
17 words
The composition of claim 1 wherein the inorganic filler is aluminum trihydrate, clay, talc or calcium carbonate.
Claim 11
Dependent Claim
57 words
The composition of claim 1 wherein the reinforcement promoter is present in an amount of from about 0.1 to 5.0 weight percent, the filler is from about 10 to 90 weight percent and the thermoplastic polymer is from about 10 to 90 weight percent, based on the total weight of promoter, filler and polymer in the composition.
Claim 12
Dependent Claim
153 words
A reinforced polymer composition substantially free of a free radical initiator or its residue comprising a thermoplastic polymer and an inorganic filler wherein the improvement comprises providing a reinforcement promoter at the boundary between the filler and polymer, for increasing the strength and ductility of the filled thermoplastic polymer, wherein the promoter has at least two reactive olefinic double bonds, and wherein said promoter is characterized by having a promoter index, P, being greater than zero, and which is defined by the formula: P=n(n-1)Q(e+2)(1-2R.sub.f °)-2.5 wherein n is the number of olefinic double bonds in the promoter, Q and e are the Alfrey-Price resonance and polarity parameters, respectively, for at least one of the olefinic double bonds in the promoter, and R f ° is the relative flow ratio of the promoter measured by thin layer chromatography on a neutral silica gel using xylene as the eluant and di-n-butyl fumarate as the standard.
Claim 13
Dependent Claim
153 words
A reinforced polymer composition substantially free of a free radical initiator or its residue comprising a thermoplastic polymer and an inorganic filler wherein the improvement comprises providing a reinforcement promoter at the boundary between the filler and polymer, for increasing the strength and ductility of the filled thermoplastic polymer, wherein the promoter has at least two reactive olefinic double bonds, and wherein said promoter is characterized by having a promoter index, P, being greater than zero, and which is defined by the formula: P=n(n-1)Q(e+2)(1-2R.sub.f °)-2.5 wherein n is the number of olefinic double bonds in the promoter, Q and e are the Alfrey-Price resonance and polarity parameters, respectively, for at least one of the olefinic double bonds in the promoter, and R f ° is the relative flow ratio of the promoter measured by thin layer chromatography on a neutral silica gel using xylene as the eluant and di-n-butyl fumarate as the standard.
Claim 14
Dependent Claim
163 words
A process for making a reinforced, filled polymeric composition comprising: (a) admixing a filler with a reinforcement promoter having at least two reactive olefinic double bonds, wherein said promoter is characterized by having a promoter index, P, being greater than zero, and which is defined by the formula: P=n(n-1)Q(e+2)(1-2R.sub.f °)-2.5 wherein n is the number of olefinic double bonds in the promoter, Q and e are the Alfrey-Price resonance and polarity parameters, respectively, of at least one of the olefinic double bonds in the promoter, and R f ° is the relative flow ratio of the promoter measured by thin layer chromatography on a neutral silica gel using xylene as the eluant and di-n-butyl fumarate as the standard; (b) compounding the filler and promoter mixture with a thermoplastic polymer for a time sufficient to generate a reinforced, filled thermoplastic polymer having increased strength and ductility; (c) wherein said admixing and compounding is carried out in the substantial absence of any free radical initiator.
Claim 15
Dependent Claim
163 words
A process for making a reinforced, filled polymeric composition comprising: (a) admixing a filler with a reinforcement promoter having at least two reactive olefinic double bonds, wherein said promoter is characterized by having a promoter index, P, being greater than zero, and which is defined by the formula: P=n(n-1)Q(e+2)(1-2R.sub.f °)-2.5 wherein n is the number of olefinic double bonds in the promoter, Q and e are the Alfrey-Price resonance and polarity parameters, respectively, of at least one of the olefinic double bonds in the promoter, and R f ° is the relative flow ratio of the promoter measured by thin layer chromatography on a neutral silica gel using xylene as the eluant and di-n-butyl fumarate as the standard; (b) compounding the filler and promoter mixture with a thermoplastic polymer for a time sufficient to generate a reinforced, filled thermoplastic polymer having increased strength and ductility; (c) wherein said admixing and compounding is carried out in the substantial absence of any free radical initiator.
Claim 16
Dependent Claim
20 words
The process of claim 12 wherein the filler and promoter are admixed simultaneously to the compounding with the thermoplastic polymer.
Claim 17
Dependent Claim
24 words
The process of claim 12 wherein the reinforcement promoter is formed in situ during mixing with the filler or during compounding with the polymer.
Claim 18
Dependent Claim
129 words
The use of a reinforcement promoter in a filled thermoplastic polymer composition substantially free of a free radical initiator or its residue wherein the improvement comprises providing a reinforcement promoter having at least two reactive olefinic double bonds, said promoter being characterized by having a promoter index, P, being greater than zero, and which is defined by the formula: P=n(n-1)Q(e+2)(1-2R.sub.f °)-2.5 wherein n is the number of olefinic double bonds in the promoter, Q and e are the Alfrey-Price resonance and polarity parameters, respectively, of at least one of the olefinic double bonds in the promoter, and R f ° is the relative flow ratio of the promoter measured by thin layer chromatography on a neutral silica gel using xylene as the eluant and di-n-butyl fumarate as the standard.
Claim 19
Dependent Claim
129 words
The use of a reinforcement promoter in a filled thermoplastic polymer composition substantially free of a free radical initiator or its residue wherein the improvement comprises providing a reinforcement promoter having at least two reactive olefinic double bonds, said promoter being characterized by having a promoter index, P, being greater than zero, and which is defined by the formula: P=n(n-1)Q(e+2)(1-2R.sub.f °)-2.5 wherein n is the number of olefinic double bonds in the promoter, Q and e are the Alfrey-Price resonance and polarity parameters, respectively, of at least one of the olefinic double bonds in the promoter, and R f ° is the relative flow ratio of the promoter measured by thin layer chromatography on a neutral silica gel using xylene as the eluant and di-n-butyl fumarate as the standard.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-05-23 | 1986-11-22 | 1987-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-23 | 1990-11-22 | 1991-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-23 | 1994-11-22 | 1995-05-24 | $7700.00 | Window Closed / Lapsed |