US5162382A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyurethanes containing multipurpose additives
Assignee: Dow Chemical Co
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Filing: 1991-07-22
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Granted: 1992-11-10
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Expires: 2011-07-22
Abstract
Abstract A flexible or semi-flexible polyurethane foam composition prepared from a formulation comprising a catalytic amount of an additive containing (1) a urea compound, and (2) a transition metal salt of a carboxylic acid wherein the metal is selected from Groups I-B, II-B, V-A, IV-B, V-B, VI-B, VII-B or VIII of the Periodic Table of the Elements; the additive containing a sufficient quantity of at least one amine group-containing material such that the transition metal salt is soluble in the additive; and water as a blowing agent. In preferred embodiments water is the sole blowing agent. The polyurethanes exhibit relatively short demolding times and improved mold release properties. They also show a reduced tendency to cause discoloration or staining of vinyl-based polymeric calddings such as polyvinyl chloride.
Inventors
- 👤 Robert Carswell
- 👤 Hugo E. Bernardi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:20
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/098; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/16; C08G18/161; C08G18/22; C08G18/28; C08G18/65; C08G18/6505; C08G18/6511; C08K5/16; C08K5/21; C08G2110/00; C08G2110/0033; C08G2110/0041; C08G2110/0066; C08G2120/00; C08G2130/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31573; Y10T428/3158
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
88 words
A polyurethane flexible or semi-flexible foam composition prepared from a formulation comprising (A) a catalytic amount of an additive containing (1) a urea compound and (2) a transition metal salt of a carboxylic acid wherein the metal is selected from Groups 1-B, II-B, V-A, IV-B, V-B, VI-B, VII-B or VIII of the Periodic Table of the Elements: the additive containing a sufficient quantity of at least one amine group-containing material such that the transition metal salt is soluble in the additive; and (B) water as a blowing agent.
Claim 2
Dependent Claim
88 words
A polyurethane flexible or semi-flexible foam composition prepared from a formulation comprising (A) a catalytic amount of an additive containing (1) a urea compound and (2) a transition metal salt of a carboxylic acid wherein the metal is selected from Groups 1-B, II-B, V-A, IV-B, V-B, VI-B, VII-B or VIII of the Periodic Table of the Elements: the additive containing a sufficient quantity of at least one amine group-containing material such that the transition metal salt is soluble in the additive; and (B) water as a blowing agent.
Claim 3
Dependent Claim
12 words
The composition of claim 1 wherein water is the sole blowing agent.
Claim 4
Dependent Claim
14 words
The composition of claim 1 further comprising at least one amine terminated polyether polyol.
Claim 5
Dependent Claim
56 words
The composition of claim 3 wherein the amine group-containing material is an unsubstituted or ether-substituted aliphatic or cycloaliphatic primary or secondary mono-amine compound; a trialkyl amine; a hydroxyl amine; a tertiary amine; an amine terminated polyether having a molecular weight less than about 500, hexamethylene diamine, diethylenetriamine; a hydrocarbyl substituted aromatic amine; or a mixture thereof.
Claim 6
Dependent Claim
31 words
The composition of claim 1 wherein the transition metal carboxylate salt has a metal cation selected from Ti, Zr, Ta, Cr, Mn, Mo, Fe, Co, Ni, Cu, Sb, Bi, and Zn.
Claim 7
Dependent Claim
22 words
The composition of claim 5 wherein the transition metal carboxylate salt has a metal cation selected from Zn, Cu, Sb, and Cd.
Claim 8
Dependent Claim
15 words
The composition of claim 6 wherein the transition metal carboxylate salt has a Zn cation.
Claim 9
Dependent Claim
22 words
The composition of claim 9 wherein the transition metal carboxylate salt has a carboxylate anion having from 8 to 21 carbon atoms.
Claim 10
Dependent Claim
30 words
The composition of claim 8 wherein the urea compound is represented by Formula I: ##STR2## wherein R 1 , R 2 , R 3 and R 4 are inert substituents.
Claim 11
Dependent Claim
47 words
The composition of claim 9 wherein in Formula I each of R 1 , R 2 , R 3 , and R 4 is independently selected from the group consisting of hydrogen, alkyl groups, aryl groups, arylalkyl groups, cycloalkyl groups, which groups are unsubstituted or inertly substituted.
Claim 12
Dependent Claim
27 words
The composition of claim 10 wherein in Formula I, at least two of R 1 , R 2 , R 3 , and R 4 are hydrogen.
Claim 13
Dependent Claim
22 words
The composition of claim 11 wherein in Formula I, at least two of the hydrogen atoms are on the same nitrogen atom.
Claim 14
Dependent Claim
28 words
The composition of claim 12 wherein in Formula I, at least three of R 1 , R 2 , R 3 , and R 4 are hydrogen atoms.
Claim 15
Dependent Claim
11 words
The composition of claim 13 wherein the urea compound is urea.
Claim 16
Dependent Claim
17 words
The composition of claim 1 wherein the polyurethane polymer is formed in a reaction injection molding process.
Claim 17
Dependent Claim
18 words
The composition of claim 15 wherein the polymer has a demolding time of less than about 60 seconds.
Claim 18
Dependent Claim
24 words
The composition of claim 1 wherein the polymer is an integral skin foam and has a demolding time of less than about 4 minutes.
Claim 19
Dependent Claim
25 words
The composition of claim 17 wherein the polymer is an integral skin foam and in the form of a shoe sole or shoe inner sole.
Claim 20
Dependent Claim
93 words
A cladded polyurethane composition prepared from a formulation comprising a catalytic amount of an additive containing (A) a urea compound, and (B) a transition metal salt of a carboxylic acid wherein said metal is selected from Groups I-B, II-B, V-A, IV-B, V-B, VI-B, VII-B or VIII of the Periodic Table of the Elements; the additive containing a sufficient quantity of at least one amine group-containing material such that the transition metal salt is soluble in the additive, wherein the polyurethane prepared therefrom is cladded on at least one surface with a vinyl-based polymer.
Claim 21
Dependent Claim
93 words
A cladded polyurethane composition prepared from a formulation comprising a catalytic amount of an additive containing (A) a urea compound, and (B) a transition metal salt of a carboxylic acid wherein said metal is selected from Groups I-B, II-B, V-A, IV-B, V-B, VI-B, VII-B or VIII of the Periodic Table of the Elements; the additive containing a sufficient quantity of at least one amine group-containing material such that the transition metal salt is soluble in the additive, wherein the polyurethane prepared therefrom is cladded on at least one surface with a vinyl-based polymer.
Claim 22
Dependent Claim
15 words
The composition of claim 19 wherein the formulation further comprises water as a blowing agent.
Claim 23
Dependent Claim
12 words
The composition of claim 20 wherein water is the sole blowing agent.
Claim 24
Dependent Claim
12 words
The composition of claim 19 wherein the vinyl-based polymer is polyvinyl chloride.
References Cited (Backward Citations)
US4125487A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-11-10 | 1996-05-11 | 1996-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-11-10 | 2000-05-11 | 2000-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-11-10 | 2004-05-11 | 2004-11-10 | $7700.00 | Window Closed / Lapsed |