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Patent US4094927A successfully refreshed from Google Patents.
US4094927A
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US
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Process for improving the processability of polyolefins, improved polyolefin compositions, and modifier compositions
Assignee: Rohm and Haas Co
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Filing: 1977-02-14
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Granted: 1978-06-13
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Expires: 1997-02-14
Abstract
Abstract An acrylic polymer of one or more C 10 to C 22 methacrylates and one or more acrylic acids selected from the group consisting of acrylic acid and methacrylic acid useful as a modifier for polyolefins, the composition comprising polyolefin and a minor amount of the modifier, and a process for improving processability of polyolefin comprising blending therewith the above mentioned acrylic polymer.
Inventors
- 👤 William H. Harrop
- 👤 David Witiak
- 👤 Russell A. LaBar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:48
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/10
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
92 words
A composition comprising a blend of a polyolefin of the formula CH.sub.2 ═CHR wherein R is H, C n H 2n+1 and n is 1 to 4, C 6 H 5 , or C 6 H 4 CH 3 , and a minor amount of the acrylic polymer of one or more C 10 to C 22 alkyl methacrylates with one or more monomers selected from the group consisting of acrylic acid, methacrylic acid and isobornyl methacrylate wherein the molecular weight ratio of methacrylates to other monomers is about 91:9 to 87:13.
Claim 2
Dependent Claim
92 words
A composition comprising a blend of a polyolefin of the formula CH.sub.2 ═CHR wherein R is H, C n H 2n+1 and n is 1 to 4, C 6 H 5 , or C 6 H 4 CH 3 , and a minor amount of the acrylic polymer of one or more C 10 to C 22 alkyl methacrylates with one or more monomers selected from the group consisting of acrylic acid, methacrylic acid and isobornyl methacrylate wherein the molecular weight ratio of methacrylates to other monomers is about 91:9 to 87:13.
Claim 3
Dependent Claim
23 words
The composition of claim 1 wherein the acrylic polymer has a weight ratio of methacrylates to acrylic acid is about 91:9 to 87:13.
Claim 4
Dependent Claim
28 words
The composition of claim 2 wherein the methacrylates are a mixture of cetyl, stearyl, and eicosyl methacrylates, the acrylic acid is MAA, and the weight ratio is 90:10.
Claim 5
Dependent Claim
23 words
The composition of claim 2 wherein the methacrylates comprise iso-decyl methacrylate, the acrylic acid is methacrylic acid, and the weight ratio is 90:10.
Claim 6
Dependent Claim
20 words
The composition of claim 1 wherein the acrylic polymer has a viscosity average molecular weight (Mv) of at least 100,000.
Claim 7
Dependent Claim
10 words
The composition of claim 1 wherein the polyolefin is polypropylene.
Claim 8
Dependent Claim
10 words
The composition of claim 1 wherein the polyolefin is polystyrene.
Claim 9
Dependent Claim
89 words
A process of improving the processability of polyolefins of the formula CH.sub.2 ═CHR wherein R is H, C n H 2n+1 and n is 1 to 4, C 6 H 5 , or C 6 H 4 CH 3 , comprising blending therewith an acrylic polymer of one or more C 10 to C 22 alkyl methacrylates with one or more monomers selected from the group consisting of acrylic acid, methacrylic acid, and isobornyl methacrylate wherein the weight ratio of methacrylates to other monomers is about 91:9 to 87:13.
Claim 10
Dependent Claim
89 words
A process of improving the processability of polyolefins of the formula CH.sub.2 ═CHR wherein R is H, C n H 2n+1 and n is 1 to 4, C 6 H 5 , or C 6 H 4 CH 3 , comprising blending therewith an acrylic polymer of one or more C 10 to C 22 alkyl methacrylates with one or more monomers selected from the group consisting of acrylic acid, methacrylic acid, and isobornyl methacrylate wherein the weight ratio of methacrylates to other monomers is about 91:9 to 87:13.
Claim 11
Dependent Claim
19 words
The process of claim 8 wherein the weight ratio of polyolefin to acrylic polymer is about 100:1 to 4:1.
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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) | 1981-06-12 | 1981-12-12 | 1982-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-12 | 1985-12-12 | 1986-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-12 | 1989-12-12 | 1990-06-13 | $7700.00 | Window Closed / Lapsed |