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US4250081A
Expired / Lapsed
US
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Thermoplastic mixtures for the production of synthetic resin films with antiblocking properties comprising a thermoplastic synthetic resin and a pulverulent zeolite
Assignee: Evonik Operations GmbH
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Filing: 1979-07-24
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Granted: 1981-02-10
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Expires: 1999-07-24
Abstract
Abstract There are provided thermoplastic polymer containing mixtures suitable for making synthetic resin films with antiblocking properties containing 0.05 to 70 weight % of a pulverulent zeolite.
Inventors
- 👤 Rudolf Bode
- 👤 Arthur Reisert
- 👤 Gunter Turk
- 👤 Hans Strack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:44
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/34
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
33 words
A thermoplastic mixture suitable for the production of a synthetic resin film having antiblocking properties comprising a thermoplastic synthetic resin and 0.05 to 70 weight % of the composition of a pulverulent zeolite.
Claim 2
Dependent Claim
33 words
A thermoplastic mixture suitable for the production of a synthetic resin film having antiblocking properties comprising a thermoplastic synthetic resin and 0.05 to 70 weight % of the composition of a pulverulent zeolite.
Claim 3
Dependent Claim
22 words
A thermoplastic mixture according to claim 1 wherein the thermoplastic synthetic resin is a polymer of ethylene or a polymer of propylene.
Claim 4
Dependent Claim
14 words
A thermoplastic mixture according to claim 2 wherein the thermoplastic synthetic resin is polyethylene.
Claim 5
Dependent Claim
16 words
A thermoplastic mixture according to claim 1 containing 2 to 60 weight % of the zeolite.
Claim 6
Dependent Claim
16 words
A thermoplastic mixture according to claim 4 containing 20 to 60 weight % of the zeolite.
Claim 7
Dependent Claim
16 words
A thermoplastic mixture according to claim 1 containing 0.05 to 2 weight % of the zeolite.
Claim 8
Dependent Claim
16 words
A thermoplastic mixture according to claim 6 containing 0.05 to 1 weight % of the zeolite.
Claim 9
Dependent Claim
14 words
A thermoplastic mixture according to claim 1 wherein the pulverulent zeolite is Zeolite A.
Claim 10
Dependent Claim
42 words
A thermoplastic mixture according to claim 8 wherein the Zeolite A has the following particle size distribution by Coulter-Counter: less than 15 microns: 99-100 weight % less than 10 microns: 95-99 weight % less than 1 micron: less than 5 weight %.
Claim 11
Dependent Claim
22 words
A thermoplastic mixture according to claim 8 wherein the thermoplastic synthetic resin is a polymer of ethylene or a polymer of propylene.
Claim 12
Dependent Claim
14 words
A thermoplastic mixture according to claim 1 wherein the pulverulent zeolite is Zeolite Y.
Claim 13
Dependent Claim
42 words
A thermoplastic mixture according to claim 11 wherein the Zeolite Y has the following particle size distribution by Coulter-Counter: less than 15 microns: 96-100 weight % less than 10 microns: 85-99 weight % less than 1 micron: less than 20 weight %.
Claim 14
Dependent Claim
22 words
A thermoplastic mixture according to claim 11 wherein the thermoplastic synthetic resin as a polymer of ethylene or a polymer of propylene.
Claim 15
Dependent Claim
14 words
A thermoplastic mixture according to claim 1 wherein the pulverulent zeolite is Zeolite X.
Claim 16
Dependent Claim
40 words
The thermoplastic mixture according to claim 14 wherein the Zeolite X has the following particle size distribution by Coulter-Counter: less than 15 microns: 96-100 weight % less than 10 microns: 85-99 weight % less than 1 micron: 20 weight %.
Claim 17
Dependent Claim
22 words
A thermoplastic mixture according to claim 14 wherein the thermoplastic synthetic resin is a polymer of ethylene or a polymer of propylene.
Claim 18
Dependent Claim
14 words
A thermoplastic mixture according to claim 1 wherein the pulverulent zeolite is Zeolite P.
Claim 19
Dependent Claim
40 words
A thermoplastic mixture according to claim 17 wherein the Zeolite P has the following particle size distribution by Coulter-Counter: less than 15 microns: 99-100 weight % less than 10 microns: 97-99 weight % less than 1 micron: 20 weight %.
Claim 20
Dependent Claim
22 words
A thermoplastic mixture according to claim 17 wherein the thermoplastic synthetic resin is a polymer of ethylene or a polymer of propylene.
Claim 21
Dependent Claim
13 words
A thermoplastic mixture according to claim 1 wherein the pulverulent zeolite is hydroxysodalite.
Claim 22
Dependent Claim
39 words
A thermoplastic mixture according to claim 20 wherein the hydroxysodalite has the following particle size distribution by Coulter-Counter: less than 15 microns: 99-100 weight % less than 10 microns: 90-99 weight % less than 1 micron: 10 weight %.
Claim 23
Dependent Claim
22 words
A thermoplastic mixture according to claim 20 wherein the thermoplastic synthetic resin is a polymer of ethylene or a polymer of propylene.
Claim 24
Dependent Claim
16 words
A thermoplastic mixture according to claim 1 wherein the thermoplastic synthetic resin is polyethylene or polypropylene.
Claim 25
Dependent Claim
24 words
A thermoplastic mixture according to claim 1 wherein the thermoplastic synthetic resin is a polyester, a polymer of ethylene or a polymer of propylene.
Claim 26
Dependent Claim
21 words
A thermoplastic mixture according to claim 1 wherein the pulverulent zeolite is zeolite A, Zeolite X, Zeolite Y or Zeolite P.
Claim 27
Dependent Claim
35 words
A thermoplastic mixture according to claim 25 wherein the pulverulent zeolite is a mixture of Zeolite X, and Zeolite P in the ratio of 80 to 5% zeolite X to 20 to 95% Zeolite P.
Claim 28
Dependent Claim
22 words
A thermoplastic mixture according to claim 26 wherein the thermoplastic synthetic resin is a polymer of ethylene or a polymer of propylene.
Claim 29
Dependent Claim
28 words
A thermoplastic mixture according to claim 1 wherein 96 to 100% by weight of the zeolite particles has a particle size by Coulter-Counter of less than 15 microns.
Claim 30
Dependent Claim
28 words
A thermoplastic mixture according to claim 28 wherein 85 to 99 weight % of the zeolite particles has a particle size by Coulter-Counter of less than 10 microns.
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) | 1984-02-10 | 1984-08-11 | 1985-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-10 | 1988-08-11 | 1989-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-10 | 1992-08-11 | 1993-02-10 | $7700.00 | Window Closed / Lapsed |