Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Reexamination Certificate
2005-04-26
2005-04-26
Sellers, Robert (Department: 1712)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C523S428000, C523S434000, C523S436000, C523S467000, C525S065000, C525S111000, C525S113000, C525S526000, C525S529000, C525S530000, C525S531000, C156S330000
Reexamination Certificate
active
06884854
ABSTRACT:
Condensation products prepared from cyclic carboxylic anhydrides of dicarboxylic acids, tricarboxylic anhydrides or tetracarboxylic anhydrides and difunctional polyamines, in particular polyoxyalkyleneamines, are suitable as a builder component for epoxy resin compositions. The reaction products based on tricarboxylic anhydrides or tetracarboxylic anhydrides are distinguished by having on average more than one imide group and carboxyl group per molecule. The compositions may optionally also contain condensation products obtained from tri- or poly-functional polyols and/or tri- or poly-functional amino-terminated polymers and cyclic carboxylic anhydrides, wherein the latter reaction products contain on average more than one carboxyl group per molecule. These compositions additionally contain conventional rubber-modified epoxy resins together with liquid and/or solid polyepoxy resins and conventional hardeners and accelerators and optionally fillers and rheology auxiliaries. Such compositions are particularly suitable as impact-resistant, impact/peel-resistant and peel-resistant adhesives in vehicle construction and in electronics. Particularly at very low temperatures, these adhesives exhibit very good impact and peel properties combined with very good corrosion resistance and ageing resistance of the adhesive bond.
REFERENCES:
patent: 3926904 (1975-12-01), Scola
patent: 4077927 (1978-03-01), McPherson
patent: 4133803 (1979-01-01), Klein
patent: 4141885 (1979-02-01), Waddill
patent: 4187367 (1980-02-01), Waddill
patent: 4403078 (1983-09-01), McCoy et al.
patent: 4423170 (1983-12-01), Waddill
patent: 4485229 (1984-11-01), Waddill et al.
patent: 4507340 (1985-03-01), Rinde et al.
patent: 4507363 (1985-03-01), Chow et al.
patent: 4514530 (1985-04-01), Sellstrom et al.
patent: 4552933 (1985-11-01), Sellstrom et al.
patent: 4554297 (1985-11-01), Dabi
patent: 4578412 (1986-03-01), Sellstrom et al.
patent: 4728384 (1988-03-01), Goel
patent: 4940770 (1990-07-01), Speranza et al.
patent: 4952645 (1990-08-01), Mulhaupt et al.
patent: 4959398 (1990-09-01), Oka et al.
patent: 4977214 (1990-12-01), Bagga
patent: 5006611 (1991-04-01), Schmid et al.
patent: 5025068 (1991-06-01), Garcia et al.
patent: 5030698 (1991-07-01), Mulhaupt et al.
patent: 5073601 (1991-12-01), Mulhaupt et al.
patent: 5084532 (1992-01-01), Schenkel
patent: 5202390 (1993-04-01), Mulhaupt et al.
patent: 5218063 (1993-06-01), Kimball
patent: 5229485 (1993-07-01), Kramer et al.
patent: 5278257 (1994-01-01), Mulhaupt et al.
patent: 5290857 (1994-03-01), Ashida et al.
patent: 5334654 (1994-08-01), Starner et al.
patent: 5354789 (1994-10-01), Kamikado
patent: 5686509 (1997-11-01), Nakayama et al.
patent: 5686557 (1997-11-01), Kiyohara et al.
patent: 5755486 (1998-05-01), Wycech
patent: 5789482 (1998-08-01), Eldin et al.
patent: 5891367 (1999-04-01), Basheer et al.
patent: 6015865 (2000-01-01), Blank et al.
patent: 6573309 (2003-06-01), Reitenbach et al.
patent: 6776869 (2004-08-01), Schenkel
patent: 20010009952 (2001-07-01), Tan et al.
patent: 20030187154 (2003-10-01), Schoenfeld et al.
patent: 1 330 143 (1994-06-01), None
patent: 1 334 700 (1995-03-01), None
patent: 2 039 404 (2002-09-01), None
patent: 198 45 607 (2000-04-01), None
patent: 0 258 556 (1988-03-01), None
patent: 0 272 222 (1988-06-01), None
patent: 0 307 666 (1989-03-01), None
patent: 0 308 664 (1989-03-01), None
patent: 0 309 190 (1989-03-01), None
patent: 0 343 676 (1989-11-01), None
patent: 0 353 190 (1990-01-01), None
patent: 0 354 498 (1990-02-01), None
patent: 0 366 157 (1990-05-01), None
patent: 0 381 625 (1990-08-01), None
patent: 0 338 985 (1994-05-01), None
patent: 0 591 307 (1996-09-01), None
patent: 2 113 690 (1982-08-01), None
Mulhaupt, et al., “Toughened Plastics II”, Adv. Chem. Ser. 252, American Chemical Soci Washington, D.C. pp. 75-94 (1996).
G. Kotting et al., “Requirements of Adhesives for Structual Vehical Body Construction”, Adhesion, Issue 9, pp. 19-26 (1988).
“Adhesives-Determination of dynamic resistance to cleavage of high strength adhesive bonds under impact conditions—Wedge impact method”. (ISO 11343). First Edition, pp. 1-8 (Aug. 1993).
“Testing of adhesives for metals; determination of the shear strength of single lap joints by tensile test”, (DIN 53 283), Normenstelle Luftfahrt, pp. 1-4 (Nov. 1974).
Kuester Harald
Schenkel Hubert
Schoenfeld Rainer
Harper Stephen D.
Henkel Kommanditgesellschaft auf Aktien
Sellers Robert
LandOfFree
Composition of epoxy resin, low glass transition temperature... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Composition of epoxy resin, low glass transition temperature..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Composition of epoxy resin, low glass transition temperature... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3388822