US4745137A
Expired / Lapsed
US
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Polyurethanes prepared from solutions or dispersions of polymers of rigid polyaromatic monomers in polyols
Assignee: Dow Chemical Co
•
Filing: 1987-07-14
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Granted: 1988-05-17
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Expires: 2007-07-14
Abstract
Abstract The inclusion of a polymer containing rigid moieties in an active hydrogen-containing compound has surprisingly been found to yield significant and unexpected improvements in the physical properties of polyurethane and/or polyurea polymers prepared therefrom. In particular, cellular polyurethane and/or polyureas made from these solutions have excellent firmness and high moduli.
Inventors
- 👤 Oomman P. Thomas
- 👤 Robert B. Turner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:32
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/0061; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/63; C08G18/635; C08G18/638; C08L; C08L75/00; C08G2110/00; C08G2110/0008; C08G2110/0025; C08G2250/00; C08J2375/00; C08J2375/04
Claims Analysis
Total Claims: 40
Claim 1
Independent Claim
60 words
A solution or colloidal dispersion of a polymer of an ethylenically unsaturated polyaromatic compound, said compound containing a rigid moiety comprising at least two aromatic nuclei which are connected by a covalent bond or a rigid connecting group, said polymer being dissolved or dispersed in an active hydrogen-containing compound having an average of at least two isocyanate-reactive groups per molecule.
Claim 2
Dependent Claim
60 words
A solution or colloidal dispersion of a polymer of an ethylenically unsaturated polyaromatic compound, said compound containing a rigid moiety comprising at least two aromatic nuclei which are connected by a covalent bond or a rigid connecting group, said polymer being dissolved or dispersed in an active hydrogen-containing compound having an average of at least two isocyanate-reactive groups per molecule.
Claim 3
Dependent Claim
91 words
The solution or colloidal dispersion of claim 1 wherein said ethylenically unsaturated polyaromatic compound has an internal grouping having the structure ##STR4## wherein b is a number from about 1 to about 10, each D is independently hydrogen, inertly substituted lower alkyl, halogen, or, when ortho to the -X- linkage, may be such that the linkage X, the aromatic rings and a group D from each ring form a cyclic structure, and each X is independently a covalent bond or a group which provides a rigid linkage between the aromatic rings.
Claim 4
Dependent Claim
32 words
The solution or colloidal dispersion of claim 2 wherein said active hydrogen-containing compound has an equivalent weight from about 400 to about 10,000 and a functionality of about 2 to about 4.
Claim 5
Dependent Claim
43 words
The solution or colloidal dispersion of claim 3 wherein said polymer of an ethylenically unsaturated polyaromatic compound is dissolved in the active hydrogen-containing compound, and about 1 to about 20 parts by weight thereof are present per 100 parts of active hydrogen-containing compound.
Claim 6
Dependent Claim
19 words
The solution of claim 4 wherein said active hydrogen-containing compound is a hydroxyl-terminated or primary or secondary amine-terminated polyether.
Claim 7
Dependent Claim
10 words
The solution of claim 5 further comprising a blowing agent.
Claim 8
Dependent Claim
27 words
The solution of claim 6 wherein the polyether has an equivalent weight of about 800 to about 3000, and wherein the solution further comprises a silicone surfactant.
Claim 9
Dependent Claim
26 words
The solution of claim 7 which further comprises from about 0.2 to about 10 parts by weight of a crosslinker per 100 parts of the polyether.
Claim 10
Dependent Claim
15 words
The solution of claim 5 further comprising an α,ω-alkylene glycol or aromatic diamine chain extender.
Claim 11
Dependent Claim
43 words
The solution or colloidal dispersion of claim 3 wherein said polymer of an ethylenically unsaturated polyaromatic compound is dispersed in the active hydrogen-containing compound, and about 1 to about 80 parts by weight thereof are present per 100 parts of active hydrogen-containing compound.
Claim 12
Dependent Claim
20 words
The colloidal dispersion of claim 10 wherein said active hydrogen-containing compound is a hydroxyl-terminated and/or primary or secondary amine-terminated polyether.
Claim 13
Dependent Claim
11 words
The colloidal dispersion of claim 11 further comprising a blowing agent.
Claim 14
Dependent Claim
28 words
The colloidal dispersion of claim 12 wherein the polyether has an equivalent weight of about 800 to about 3000, and wherein the solution further comprises a silicone surfactant.
Claim 15
Dependent Claim
27 words
The colloidal dispersion of claim 13 which further comprises from about 0.2 to about 10 parts by weight of a crosslinker per 100 parts of the polyether.
Claim 16
Dependent Claim
16 words
The colloidal dispersion of claim 11 further comprising an α,ω-alkylene glycol or aromatic diamine chain extender.
Claim 17
Dependent Claim
39 words
The solution or colloidal dispersion of claim 7, 9, 13 or 15 wherein each X is independently a covalent bond, a cycloalkyl group, --N═N--, --N═C═N--, ##STR5## --COO--, --NHCO--, --NHCOO--, --C═C--, --C.tbd.C-- or --N═C--, and b is 1 or 2.
Claim 18
Dependent Claim
19 words
A polyurethane and/or polyurea polymer prepared by reacting a polyisocyanate with the solution or colloidal dispersion of claim 1.
Claim 19
Dependent Claim
19 words
A polyurethane and/or polyurea polymer prepared by reacting a polyisocyanate with the solution or colloidal dispersion of claim 3.
Claim 20
Dependent Claim
16 words
A polyurethane and/or polyurea polymer prepared by reacting a polyisocyanate with the solution of claim 7.
Claim 21
Dependent Claim
16 words
A polyurethane and/or polyurea polymer prepared by reacting a polyisocyanate with the solution of claim 9.
Claim 22
Dependent Claim
17 words
A polyurethane and/or polyurea polymer prepared by reacting a polyisocyanate with the colloidal dispersion of claim 13.
Claim 23
Dependent Claim
17 words
A polyurethane and/or polyurea polymer prepared by reacting a polyisocyanate with the colloidal dispersion of claim 15.
Claim 24
Dependent Claim
33 words
The solution or colloidal dispersion of claim 2 wherein said active hydrogen-containing compound has an equivalent weight from about 31 to about 1000 and an average functionality of about 2.5 to about 16.
Claim 25
Dependent Claim
43 words
The solution or colloidal dispersion of claim 23 wherein said polymer of an ethylenically unsaturated polyaromatic compound is dissolved in the active hydrogen-containing compound, and about 1 to about 20 parts by weight thereof are present per 100 parts of active hydrogen-containing compound.
Claim 26
Dependent Claim
13 words
The solution of claim 24 further comprising a blowing agent and a surfactant.
Claim 27
Dependent Claim
43 words
The solution or colloidal dispersion of claim 23 wherein said polymer of an ethylenically unsaturated polyaromatic compound is dispersed in the active hydrogen-containing compound, and about 1 to about 80 parts by weight thereof are present per 100 parts of active hydrogen-containing compound.
Claim 28
Dependent Claim
14 words
The colloidal dispersion of claim 26 further comprising a blowing agent and a surfactant.
Claim 29
Dependent Claim
17 words
A polyurethane and/or polyurea polymer prepared by reacting a polyisocyanate with the colloidal dispersion of claim 23.
Claim 30
Dependent Claim
35 words
A polyurethane and/or polyurea foam containing a polymer of an ethylenically unsaturated compound containing a rigid moiety comprising at least two aromatic nuclei which are connected by a covalent bond or a rigid connecting group.
Claim 31
Dependent Claim
35 words
A polyurethane and/or polyurea foam containing a polymer of an ethylenically unsaturated compound containing a rigid moiety comprising at least two aromatic nuclei which are connected by a covalent bond or a rigid connecting group.
Claim 32
Dependent Claim
55 words
The polyurethane and/or polyurea foam of claim 29 which is the reaction product of a reaction mixture comprising an active hydrogen-containing compound and a polyisocyanate, and said polymer of an ethylenically unsaturated compound is present in an amount from about 1 to about 80 parts by weight per 100 parts by weight active hydrogen-containing compound.
Claim 33
Dependent Claim
92 words
The polyurethane and/or polyurea foam of claim 30 wherein said ethylenically unsaturated compound has an internal grouping as represented by the structure ##STR6## wherein b is a number from about 1 to about 10, each D is independently hydrogen, inertly substituted lower alkyl, halogen, or, when ortho to the -X- linkage, may be such that the linkage X, the aromatic rings and a group D from each ring form a cyclic structure, and each X is independently a covalent bond or a group which provides a rigid linkage between the aromatic rings.
Claim 34
Dependent Claim
13 words
The polyurethane and/or polyurea foam of claim 31 which is a rigid foam.
Claim 35
Dependent Claim
13 words
The polyurethane and/or polyurea foam of claim 31 which is a flexible foam.
Claim 36
Dependent Claim
39 words
A crosslinked, noncellular or microcellular polyurethane and/or polyurea polymer containing a polymer of an ethylenically unsaturated compound containing a rigid moiety comprising at least two aromatic nuclei which are connected by a covalent bond or a rigid connecting group.
Claim 37
Dependent Claim
39 words
A crosslinked, noncellular or microcellular polyurethane and/or polyurea polymer containing a polymer of an ethylenically unsaturated compound containing a rigid moiety comprising at least two aromatic nuclei which are connected by a covalent bond or a rigid connecting group.
Claim 38
Dependent Claim
55 words
The polyurethane and/or polyurea polymer of claim 34 which is the reaction product of a reaction mixture comprising an active hydrogen-containing compound and a polyisocyanate, and said polymer of an ethylenically unsaturated compound is present in an amount from about 1 to about 80 parts by weight per 100 parts by weight active hydrogen-containing compound.
Claim 39
Dependent Claim
85 words
The polyurethane and/or polyurea polymer of claim 35 wherein said ethylenically unsaturated compound has an internal grouping as represented by the structure ##STR7## wherein b is a number from about 1 to about 10, each D is independently hydrogen, inertly substituted lower alkyl, halogen, or, when ortho to the -X- linkage, may be such that the linkage X, the aromatic rings and a group D from each ring form a cyclic structure, and each X is independently a covalent bond or a rigid connecting group.
Claim 40
Dependent Claim
46 words
The polyurethane and/or polyurea polymer of claim 36 wherein said active hydrogen-containing compound comprises a mixture comprising a hydroxyl-terminated or primary or secondary amine-terminated polyether having an equivalent weight for about 1000 to about 3000, and an α,ω-alkylene glycol, α,ω-glycol ether and/or aromatic diamine chain extender.
References Cited (Backward Citations)
US3872050A
Cited
JPS56152830A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-05-17 | 1991-11-16 | 1992-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-05-17 | 1995-11-16 | 1996-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-05-17 | 1999-11-16 | 2000-05-17 | $7700.00 | Window Closed / Lapsed |