US4954199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two component polyurethane adhesive
Assignee: Bayer Corp
•
Filing: 1987-07-23
•
Granted: 1990-09-04
•
Expires: 2007-07-23
Abstract
Abstract The present invention is related to a structural member comprising a laminate and an adhesive where said adhesive is the reaction product of (a) 100 parts by weight of at least one hydroxy functional material having a molecular weight of at least 300 and a hydroxy functionality of at least 2 which material is preferably selected from the group consisting of polyether polyols, polyester polyols, polyester amide polyols, and polycarbonate polyols, (b) 0.2 to 20 parts by weight of an aliphatic, aromatic and/or a cycloaliphatic diamine or triamine, and (c) an organic isocyanate in an amount sufficient to render the isocyanate index between about 70 and about 150, wherein said component (c) is not prereacted with any of the components (a) and (b). In a preferred embodiment, there is included up to 50 parts by weight of component (d) which is an aliphatic polyol having a functionality of at least 2 and a molecular weight of below 300. Also in the preferred embodiment, component (c) is not prereacted with any of (a), (b) and (d).
Inventors
- 👤 Randall C. Rains
- 👤 Jeffrey F. Dormish
- 👤 Susan A. Stanton
- 👤 James N. Rieck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:19
CPC Classifications
C; C09; C09J; C09J175/00; C09J175/04; C09J175/12; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/65; C08G18/6505; C08G18/6523; C08G18/6529; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31605
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
133 words
A method for bonding laminae comprising applying to at least one surface to be bonded an adhesive comprising the reaction product of (a) 100 parts by weight of at least one hydroxy functional material having a molecular weight of at least 300 and a functionality of at least 2; (b) about 0.2 to about 20 parts by weight of at least one member selected from the group consisting of isophorone diamine, methylene bis(cyclohexyl amine), diethyl-toluene diamine, diethylene triamine and 1-methyl-3,5-diethyl-2,4-diaminobenzene said member having a molecular weight of at least 60 ; and (c) an organic isocyanate in a sufficient amount to render the isocyanate index of the adhesive about 70 to about 150; said reaction product being further characterized in that said (c) is not prereacted with any of said (a) and (b).
Claim 2
Independent Claim
133 words
A method for bonding laminae comprising applying to at least one surface to be bonded an adhesive comprising the reaction product of (a) 100 parts by weight of at least one hydroxy functional material having a molecular weight of at least 300 and a functionality of at least 2; (b) about 0.2 to about 20 parts by weight of at least one member selected from the group consisting of isophorone diamine, methylene bis(cyclohexyl amine), diethyl-toluene diamine, diethylene triamine and 1-methyl-3,5-diethyl-2,4-diaminobenzene said member having a molecular weight of at least 60 ; and (c) an organic isocyanate in a sufficient amount to render the isocyanate index of the adhesive about 70 to about 150; said reaction product being further characterized in that said (c) is not prereacted with any of said (a) and (b).
Claim 3
Independent Claim
139 words
The method for bonding substrate comprising applying to the surface of at least one substrate the reaction product of (a) 100 parts by weight of at least one polyhydroxy polyether having a viscosity, at 23° C. of at most 2000 mPa.s; (b) 0.2 to 20 parts by weight of at least one member selected from the group consisting of isophorone diamine, methylene bis(cyclohexyl-amine), diethyl-toluene diamine, diethylene triamine and 1-methyl-3,5-diethyl-2,4-diaminobenzene said member having a molecular weight of at from 60 to 400; (c) an organic isocyanate having a viscosity at 23° C. of at most 1000 mPa.s wherein said (c) is admixed in a solution of said (b) in said (a) using a countercurrent mixing device and wherein said reaction product is in the form of beads, and bringing the surfaces to be bonded into contact one with the other.
Claim 4
Independent Claim
139 words
The method for bonding substrate comprising applying to the surface of at least one substrate the reaction product of (a) 100 parts by weight of at least one polyhydroxy polyether having a viscosity, at 23° C. of at most 2000 mPa.s; (b) 0.2 to 20 parts by weight of at least one member selected from the group consisting of isophorone diamine, methylene bis(cyclohexyl-amine), diethyl-toluene diamine, diethylene triamine and 1-methyl-3,5-diethyl-2,4-diaminobenzene said member having a molecular weight of at from 60 to 400; (c) an organic isocyanate having a viscosity at 23° C. of at most 1000 mPa.s wherein said (c) is admixed in a solution of said (b) in said (a) using a countercurrent mixing device and wherein said reaction product is in the form of beads, and bringing the surfaces to be bonded into contact one with the other.
Claim 5
Dependent Claim
126 words
A structural member comprising a lamina and an adhesive wherein said adhesive comprises the reaction product of (a) 100 parts by weight of at least one hydroxy functional material having a molecular weight of at least 300 and a functionality of at least 2; (b) about 0.2 to about 20 parts by weight of at least one member selected from the group consisting of isophorone diamine, methylene bis(cyclohexylamine), diethyl-toluene diamine, diethylene triamine and 1-methyl-3,5-diethyl-2,4-diaminobenzene said member having a molecular weight of at least 60; and (c) an organic isocyanate in a sufficient amount to render the isocyanate index of the adhesive about 70 to about 150 said reaction product being further characterized in that said (c) is not prereacted with any of said (a) and (b).
Claim 6
Dependent Claim
126 words
A structural member comprising a lamina and an adhesive wherein said adhesive comprises the reaction product of (a) 100 parts by weight of at least one hydroxy functional material having a molecular weight of at least 300 and a functionality of at least 2; (b) about 0.2 to about 20 parts by weight of at least one member selected from the group consisting of isophorone diamine, methylene bis(cyclohexylamine), diethyl-toluene diamine, diethylene triamine and 1-methyl-3,5-diethyl-2,4-diaminobenzene said member having a molecular weight of at least 60; and (c) an organic isocyanate in a sufficient amount to render the isocyanate index of the adhesive about 70 to about 150 said reaction product being further characterized in that said (c) is not prereacted with any of said (a) and (b).
References Cited (Backward Citations)
US3274160A
Cited
US3036996A
Cited
US3591561A
Cited
US3639354A
Cited
US3577295A
Cited
US3686047A
Cited
US3725355A
Cited
US3714127A
Cited
US3979364A
Cited
US4045527A
Cited
US4028301A
Cited
US4156064A
Cited
US4184005A
Cited
US4193832A
Cited
US4182898A
Cited
US4552934A
Cited
US4336298A
Cited
US4554340A
Cited
US4487909A
Cited
US4444976A
Cited
US4530941A
Cited
JPS6126683A
Cited
US4568717A
Cited
US4742113A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-09-03 | 1994-03-05 | 1994-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-09-03 | 1998-03-05 | 1998-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-09-03 | 2002-03-05 | 2002-09-04 | $7700.00 | Window Closed / Lapsed |