IP Library Granted Patent US 6,967,223
Granted Patent B1
US 6,967,223 · App. 09/623,115 · Granted Nov 22, 2005

Fiber-free shaped parts

Assignee: Cognis Deutschland GmbH & Co. KG
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Quick Facts
Patent No.
US 6,967,223
App. No.
09/623,115
Granted
Nov 22, 2005
Kind
B1
Abstract

A fiber-free molding composition containing: (a) a binder selected from the group consisting of an epoxide, a polyisocyanate, a furane-resin-free phenolic resin, and mixtures thereof; and (b) a filler mixture containing: (i) an inorganic high-temperature-resistant filler; and (ii) a heat-activatable swelling agent.

Claims (40)

1. A fiber-free molding composition comprising:

(a) a binder selected from the group consisting of an epoxide, a polyisocyanate, a furane-resin-free phenolic resin, and mixtures thereof; and

(b) a filler mixture containing:

(i) from about 20 to 90% by weight, based on the weight of the filler mixture, of an inorganic high-temperature-resistant filler;

(ii) a heat activatable swelling agent;

(iii) an adhesive; and

(iv) a micropore-forming, high-temperature-resistant filler.

2. The composition of claim 1 wherein the filler mixture further comprises:

(iii) an adhesive;

(iv) a micropore-forming, high-temperature-resistant filler; and

(v) a grinding and/or anticaking agent.

3. The composition of claim 1 wherein the filler mixture has a pH of up to 7.5.

4. The composition of claim 2 wherein the filler mixture contains;

(i) from 20 to 90% by weight of the inorganic high-temperature-resistant filler;

(ii) from 1 to 30% by weight of the heat-activatable swelling agent;

(iii) from 0.1 to 35% by weight of the adhesive;

(iv) from 2 to 40% by weight of the micropore-forming, high-temperature-resistant filler; and

(v) from 0.01 to 10% by weight of the grinding and/or anticaking agent, all weights being based on the total weight of the molding.

5. The composition of claim 1 further comprising a hardener.

6. The composition of claim 1 further comprising a blowing agent.

7. The composition of claim 1 wherein the molding has a density of from 100 to 300 kg/m 3 .

8. A process for making a fiber-free molding composition comprising:

(a) providing a binder selected from the group consisting of an epoxide, a polyisocyanate, a furane-resin-free phenolic resin, and mixtures thereof;

(b) providing a thermosetting hardener;

(c) providing a filler mixture containing:

(i) an inorganic high-temperature-resistant filler;

(ii) a heat-activatablle swelling agent;

(iii) an adhesive;

(iv) a micropore-forming, high-temperature-resistant filler; and

(v) a grinding and/or anticaking agent; and

(d) combining (a)–(c) to form the fiber-free molding composition.

9. The process of claim 8 further comprising mixing an emulsifier with the binder.

10. The process of claim 8 further comprising providing a blowing agent.

11. The process of claim 8 wherein the filler mixture has a pH of up to 7.5.

12. The process of claim 8 further comprising introducing the molding mixture into a mold to form a solid, fiber-free foam form.

13. The product of the process of claim 8 .

14. The product of the process of claim 9 .

15. The product of the process of claim 10 .

16. The product of the process of claim 11 .

17. The product of the process of claim 12 .

Assignments (3)
PATENT AND TRADEMARK TRANSFER AND LICENSE AGREEMENT Recorded Nov 11, 2008
From: COGNIS DEUTSCHLAND GMBH & CO. KG
To: COGNIS IP MANAGEMENT GMBH
Reel/Frame 021817/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 11, 2003
From: COGNIS DEUTSCHLAND GMBH
To: COGNIS DEUTSCHLAND GMBH & CO. KG
Reel/Frame 013727/0041 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 19, 2000
From: GRAF, ROBERT; KAISER, MARIA-ELISABETH; LEHR, KLAUS; SIX, WOLFGANG
To: COGNIS DEUTSCHLAND GMBH
Reel/Frame 011181/0646 →
Priority Claims (2)
DE 198 08 131 · Feb 26, 1998 · national
DE 199 05 153 · Feb 9, 1999 · national