US4362835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition of pelletized and powdery LLDPE and liquid polyolefin for the production of film
Assignee: Pliant LLC
•
Filing: 1980-12-08
•
Granted: 1982-12-07
•
Expires: 2000-12-08
Abstract
Abstract The invention relates to compositions suitable for forming a film by a bubble extrusion process comprising a blend of a pelletized linear low density polyethylene containing from 0 to about 15 mol percent of a comonomer of a mono-olefin having 3 to 12 carbon atoms, 0 to about 20 mol percent of a pelletized low density polyethylene, 20 to 25 mol percent of a powdery linear low density polyethylene containing from 0 to about 15 mol percent of a comonomer of a mono-olefin having from 3 to 12 carbon atoms and 1 to 10 mol percent of a liquid polyolefin.
Inventors
- 👤 Martin A. Phillips, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:36
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/08; C08L23/0807; C08L23/0815; C08L2205/00; C08L2205/02; C08L2205/03; C08L23/18; C08L23/20
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
84 words
A blend of a pelletized linear low density polyethylene containing from 0 to about 15 mol percent of a comonomer of a mono-olefin having 3 to 12 carbon atoms, 0 to about 20 mol percent of a pelletized low density polyethylene, 20 to 25 mol percent of a powdery linear low density polyethylene containing from 0 to about 15 mol percent of a comonomer of a mono-olefin having from 3 to 12 carbon atoms and 1 to 10 mol percent of a liquid polyolefin.
Claim 2
Dependent Claim
84 words
A blend of a pelletized linear low density polyethylene containing from 0 to about 15 mol percent of a comonomer of a mono-olefin having 3 to 12 carbon atoms, 0 to about 20 mol percent of a pelletized low density polyethylene, 20 to 25 mol percent of a powdery linear low density polyethylene containing from 0 to about 15 mol percent of a comonomer of a mono-olefin having from 3 to 12 carbon atoms and 1 to 10 mol percent of a liquid polyolefin.
Claim 3
Dependent Claim
20 words
The blend of claim 1 wherein the liquid polyolefin has a viscosity at 100° C. of 80 to 4500 centistakes.
Claim 4
Dependent Claim
21 words
The blend of claim 1 wherein the blend contains 3 to 5 parts per 100 parts of a food grade surfactant.
Claim 5
Dependent Claim
15 words
The blend of claim 3 wherein the surfactant is a glycerol mono fatty acid ester.
Claim 6
Dependent Claim
13 words
The blend of claim 3 wherein the surfactant contains an ethoxidized nonyl phenol.
Claim 7
Dependent Claim
24 words
The blend of claim 1 wherein the powdery linear low density polyethylene has a particle size capable of passing a No. 20 U.S. Screen.
Claim 8
Dependent Claim
12 words
The blend of claim 1 wherein the liquid polyolefin is a polybutene.
Claim 9
Dependent Claim
19 words
The blend of claim 7 wherein the polybutene has a viscosity at 100° C. of 80 to 4500 centistakes.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-12-06 | 1986-06-07 | 1986-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-12-06 | 1990-06-07 | 1990-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-12-06 | 1994-06-07 | 1994-12-07 | $7700.00 | Window Closed / Lapsed |