Claims
- 1. A process for the production of a composite material comprisinga) combining material to be bonded with a composition comprising 1) an aromatic polyisocyanate and 2) a polyester having an average molecular weight of from 600 to about 5000 obtained by self-condensation of ricinoleic acid alone or by condensation of ricinoleic acid with a C2-C20 starter polyol, and optionally 3) an additive and b) molding or compressing the product of a) at a temperature of from about 180 to about 250° C.
- 2. The process of claim 1 in which a polyhydroxylic compound having a molecular weight of from about 400 to about 10,000 is also combined with the material to be bonded in step a).
- 3. The process of claim 2 in which the material to be bonded is a cellulose-containing and/or lignocellulose-containing material.
- 4. The process of claim 3 in which the material to be bonded further includes ground scrap plastic.
- 5. The process of claim 4 in which the plastic is an isocyanate-based plastic.
- 6. The process of claim 1 in which the material to be bonded is cellulose-containing and/or lignocellulose-containing material.
- 7. The process of claim 6 in which the material to be bonded further includes ground scrap plastic.
- 8. The process of claim 7 in which the plastic is an isocyanate-based plastic.
Priority Claims (2)
Number |
Date |
Country |
Kind |
43 23 231 |
Jul 1993 |
DE |
|
44 00 465 |
Jan 1994 |
DE |
|
Parent Case Info
This application is a continuation of application Ser. No. 08/271,344 filed Jul. 6, 1994 now abandoned.
US Referenced Citations (10)
Foreign Referenced Citations (8)
Number |
Date |
Country |
793937 |
Sep 1968 |
CA |
1492507 |
May 1969 |
DE |
1653178 |
Nov 1970 |
DE |
4114022 |
Nov 1992 |
DE |
0478216 |
Apr 1992 |
EP |
0513964 |
Nov 1992 |
EP |
1148016 |
Apr 1969 |
GB |
1387454 |
Mar 1975 |
GB |
Non-Patent Literature Citations (1)
Entry |
Sax et al.; Hawley's Condensed Chemical Dictionary, Eleventh Edition; Van No strand Reinhold, New York, 1987, p. 302. |
Continuations (1)
|
Number |
Date |
Country |
Parent |
08/271344 |
Jul 1994 |
US |
Child |
08/386795 |
|
US |