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US 2026/0201110 A1Published application
Storage-Stable Solid Rubber Epoxy Adduct
AssigneeZephyros, Inc.
InventorsMichael J. Czaplicki, Donald A. Paquet, Jeanne S. Bednarski
Life of this patent
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Abstract
A solid, storage-stable, epoxy resin composition comprising the reaction product of a solid carboxylated nitrile rubber (XNBR) and an epoxy functional resin, wherein the carboxylic acid content of the carboxylated nitrile rubber is less than about 2% by weight carboxyl content.
Claims27
1:
- A solid, storage-stable, epoxy resin composition comprising the reaction product of:
- (i) a solid carboxylated nitrile rubber (XNBR);
- and
- (ii) an epoxy functional resin;
- wherein the carboxylic acid content of the carboxylated nitrile rubber is less than about 2% by weight carboxyl content.
2 more elements
2:
- The composition of claim 1, wherein the carboxyl content is less than 1% by weight.
3:
- The composition of claim 1, wherein the XNBR content is at least 10% by weight.
4-5. (canceled)
6:
- The composition of claim 1, wherein the reaction product is formed in the presence of a solvent.
7:
- The composition of claim 1, wherein the reaction product is formed in the absence of any solvent.
8:
- The composition of claim 3, wherein the epoxy resin composition is adapted to be foamed and/or cured upon exposure to a stimulus.
(canceled)
10:
- The composition of claim 8, wherein the XNBR has a Mooney viscosity of 40-50 MU at 100° C. when tested in accordance with ISO 289.
11:
- The composition of claim 1, wherein the XNBR has an acrylonitrile content of at least 30% by weight.
12:
- The composition of claim 1, wherein the XNBR has an acrylonitrile content of less than 40% by weight.
(canceled)
14:
- The composition of claim 3, wherein the composition includes at least two solid epoxy functional resins.
15:
- The composition of claim 3, wherein the composition includes at least one solid epoxy functional resins and at least one liquid epoxy functional resin.
(canceled)
17:
- The composition of claim 1, wherein the reaction product forms an adduct which is added to the composition.
18:
- The composition of claim 1, wherein the reaction product includes a PVB component.
19:
- The composition of claim 8, wherein the ratio of XNBR to epoxy functional resin is about 1 part XNBR:3 parts epoxy functional resin to 1 part XNBR:4 parts epoxy functional resin.
20:
- A foamable composition comprising:
- (i) a reaction product of a solid carboxylated nitrile rubber (XNBR) and an epoxy functional resin;
- (ii) a foaming agent;
- (iii) a curing agent;
- and
- (iv) an optional polymeric particle.
3 more elements
21:
- The composition of claim 20, wherein the carboxylic acid content of the carboxylated nitrile rubber is less than about 2% by weight carboxyl content.
22-33. (canceled)
34:
- The composition of claim 20, wherein the composition includes at least two solid epoxy functional resins.
35:
- The composition of claim 20, wherein the composition includes at least one solid epoxy functional resins and at least one liquid epoxy functional resin.
36-39. (canceled)
40:
- The composition of claim 20, wherein the reaction product is solid at room temperature (e.g., 20° C. to 25° C.).
41-47. (canceled)
48:
- A vehicle body component having an oily surface and including the composition of claim 1.
Dependencies are inferred from the claim text.