US4046742A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compositions containing hydroxyl groups and their use for the production of flameproof plastics
Assignee: Bayer AG
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Filing: 1975-10-08
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Granted: 1977-09-06
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Expires: 1995-10-08
Abstract
Abstract The instant invention is broadly directed to novel hydroxyl containing compositions and the use thereof in producing polyurethane resins. The novel products are produced by mixing a halogenated bisphenol with a hydroxypolyester and thereafter alkoxylating the mixture.
Inventors
- 👤 Erich Eimers
- 👤 Rolf Dhein
- 👤 Rolf Wiedermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:13
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/38; C08G18/3802; C08G18/3804; C08G18/3806; C08G18/65; C08G18/66; C08G18/6633; C08G18/67; C08G18/68; C08G63/00; C08G63/68; C08G63/682; C08G63/6824; Y; Y10; Y10S; Y10S521/00; Y10S521/902
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
191 words
A composition containing hydroxyl groups which has an acid number of less than 1 and a hydroxyl number in the range from 150 to 300 obtained by mixing 25 to 75% by weight of a halogenated 2,2-diphenylol propane corresponding to the general formula ##STR6## in which R 1 , R 2 , R 3 , R 4 , R 1 ', R 2 ', R 3 ', Rhd 4' represents H, C 1 -C 4 -alkyl, or halogen, at least 1 R = halogen, with 75 to 25% by weight of a polyester containing hydroxyl groups, obtained from saturated, unsaturated or halogenated aliphatic and/or cycloaliphatic and/or aromatic polycarboxylic acids, and a molar excess of dialcohols corresponding to the following formula ##STR7## in which X 1 to X 8 = H, or C 1 -C 4 -alkyl, n = 1 - 10, A = o or S and by subsequently alkoxylating in the presence of alkaline reacting substances the aforementioned mixture with an alkylene oxide corresponding to the formula ##STR8## in which R = H, CH 3 , CH 2 OH, CH 2 Cl, CH 2 Br, C 2 H 5 .
Claim 2
Dependent Claim
191 words
A composition containing hydroxyl groups which has an acid number of less than 1 and a hydroxyl number in the range from 150 to 300 obtained by mixing 25 to 75% by weight of a halogenated 2,2-diphenylol propane corresponding to the general formula ##STR6## in which R 1 , R 2 , R 3 , R 4 , R 1 ', R 2 ', R 3 ', Rhd 4' represents H, C 1 -C 4 -alkyl, or halogen, at least 1 R = halogen, with 75 to 25% by weight of a polyester containing hydroxyl groups, obtained from saturated, unsaturated or halogenated aliphatic and/or cycloaliphatic and/or aromatic polycarboxylic acids, and a molar excess of dialcohols corresponding to the following formula ##STR7## in which X 1 to X 8 = H, or C 1 -C 4 -alkyl, n = 1 - 10, A = o or S and by subsequently alkoxylating in the presence of alkaline reacting substances the aforementioned mixture with an alkylene oxide corresponding to the formula ##STR8## in which R = H, CH 3 , CH 2 OH, CH 2 Cl, CH 2 Br, C 2 H 5 .
Claim 3
Dependent Claim
47 words
The composition of claim 1 having a hydroxyl number of from 180 to 250 wherein from 40 to 60% by weight of said halogenated 2,2-diphenylolpropane and 60 to 40% by weight of said polyester are used, and, wherein at least one R is either chlorine or bromine.
Claim 4
Dependent Claim
46 words
The composition of claim 1, wherein a halogenated 2,2-diphenylol propane is mixed in a polyester containing hydroxyl groups and the resulting mixture treated with alkylene oxide at a temperature in the range from 80° to 180° C. until the phenolic groups have been substantially quantitatively etherified.
Claim 5
Dependent Claim
63 words
The composition of claim 1 obtained by mixing 45 to 55% by weight of tetrabromobisphenol with 55 to 45% by weight of a polyester, obtained by esterifying 2.25 to 2.75 mols of triethylene glycol with 1.25 to 1.5 mols of adipic acid, and treating the mixture with ethylene oxide at 110° to 130° C. until the phenol groups have been substantially completely reacted.
Claim 6
Dependent Claim
34 words
In a process for preparing polyurethane by reacting a polyisocyanate with a reactive hydrogen containing material, the improvement comprising employing as the active hydrogen containing material, a material comprising the composition of claim 1.
Claim 7
Dependent Claim
39 words
In a process for preparing the polyisocyanurate resin by polymerizing a polyisocyanate in the presence of an active hydrogen containing material, the improvement comprising employing as the active hydrogen containing material, a material comprising the composition of claim 1.
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) | 1980-09-05 | 1981-03-07 | 1981-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-05 | 1985-03-07 | 1985-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-05 | 1989-03-07 | 1989-09-06 | $7700.00 | Window Closed / Lapsed |