US4632962A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydroxyl group graft modified polyolefins
Assignee: General Electric Co
•
Filing: 1984-12-24
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Granted: 1986-12-30
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Expires: 2004-12-24
Abstract
Abstract Polyolefins are graft modified with functional hydroxyl groups through an imide linkage and chemically reacted with polymerized polycarbonates, polyesters, and/or poly(ester-carbonates) to produce a thermoplastic molding composition.
Inventors
- 👤 Robert R. Gallucci
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:47
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/30
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
65 words
Hydroxyl group graft modified polyolefins having grafts consisting essentially of chemically combined units of the formula: ##STR7## wherein, R 1 is a substituted or unsubstituted, trivalent, aromatic or aliphatic organic residue of from 2-15 carbon atoms, R 2 is a substituted or unsubstituted di-, tri-, or tetra- valent, aromatic or aliphatic organic residue of from 1-15 carbon atoms and y is 1, 2, or 3.
Claim 2
Dependent Claim
65 words
Hydroxyl group graft modified polyolefins having grafts consisting essentially of chemically combined units of the formula: ##STR7## wherein, R 1 is a substituted or unsubstituted, trivalent, aromatic or aliphatic organic residue of from 2-15 carbon atoms, R 2 is a substituted or unsubstituted di-, tri-, or tetra- valent, aromatic or aliphatic organic residue of from 1-15 carbon atoms and y is 1, 2, or 3.
Claim 3
Dependent Claim
34 words
The hydroxyl group graft modified polyolefin of claim 1 wherein R 1 is derived from a compound selected from the group consisting of maleic anhydride, monochloromaleic anhydride, dichloromaleic anhydride, citraconic anhydride, and dimethylmaleic anhydride.
Claim 4
Dependent Claim
34 words
The hydroxyl group graft modified polyolefin of claim 1 wherein R 2 is derived from a compound selected from the group consisting of o-aminophenol, m-aminophenol, p-aminophenol, 5-amino-3-cresol, 5-amino-2-cresol, aminohydroquinone, 3-amino resorcinol, aminocatechol, 2-amino-2-(4'-hydroxyphenyl)propane, 2-(4-aminophenyl)-2-(4'-hydroxyphenyl)propane.
Claim 5
Dependent Claim
20 words
The hydroxyl group graft modified polyolefin of claim 1 wherein R 2 is derived from an amine substituted aliphatic alcohol.
Claim 6
Dependent Claim
13 words
The hydroxyl group graft modified polyolefin of claim 1 wherein y is 1.
Claim 7
Dependent Claim
83 words
Hydroxyl group graft modified polyolefins having the general formula: ##STR8## wherein R 1 is a substituted or unsubstituted, trivalent, aromatic or aliphatic organic residue of from 2-15 carbon atoms, R 2 is a substituted or unsubstituted di-, tri-, or tetra- valent, aromatic or aliphatic organic residue of from 1-15 carbon atoms, y is 1, 2, or 3 and z has a value of from about 1×10 -6 moles to about 1×10 -1 moles per 100 g of PO and PO is a polyolefin.
Claim 8
Dependent Claim
83 words
Hydroxyl group graft modified polyolefins having the general formula: ##STR8## wherein R 1 is a substituted or unsubstituted, trivalent, aromatic or aliphatic organic residue of from 2-15 carbon atoms, R 2 is a substituted or unsubstituted di-, tri-, or tetra- valent, aromatic or aliphatic organic residue of from 1-15 carbon atoms, y is 1, 2, or 3 and z has a value of from about 1×10 -6 moles to about 1×10 -1 moles per 100 g of PO and PO is a polyolefin.
Claim 9
Dependent Claim
23 words
The hydroxyl group graft modified polyolefin of claim 6 wherein PO is at least about 50 percent by weight derived from ethylene monomers.
Claim 10
Dependent Claim
29 words
Hyodroxyl group graft modified polyolefins as in claim 6 wherein z has a value of from about 5×10 -4 moles to about 2.5×10 -2 moles per 100 grams PO.
Claim 11
Dependent Claim
31 words
Hydroxyl group graft modified polyolefins as in claim 1 which comprise 1.5 to 3.5 parts by weight graft units of formula II of claim 18 per 100 parts by weight polyolefin.
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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) | 1989-12-29 | 1990-06-30 | 1990-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-12-29 | 1994-06-30 | 1994-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-12-29 | 1998-06-30 | 1998-12-30 | $7700.00 | Window Closed / Lapsed |