Composite elements of thermal insulation material, adhesive and outer layer
AssigneeBASF SE
InventorsOlaf JACOBMEIER, Sabrina KRONIG, Antje HUSKOBLA, Christian RENNER, Peter HUNTEMANN
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Abstract
Described herein is a process for producing composite elements comprising thermal insulation material (B), adhesive (C), and optionally at least one outer layer (A), where the thermal insulation material (B) is bonded with the adhesive (C). Also described herein are composite elements formed from thermal insulation material (B) and adhesive (C) and optionally at least one outer layer (A), producible by such a process. Also described herein is a method of using the adhesive (C) for the bonding of thermal insulation materials (B).
Claims18
A process for producing composite elements comprising thermal insulation material (B) and adhesive (C) and optionally at least one outer layer (A), wherein the thermal insulation material (B) is bonded with the adhesive (C), wherein the adhesive (C) is a polyurethane adhesive preparable by mixing
- (a) polyisocyanates with
- (b) polyols having at least two isocyanate-reactive groups,
- (c) blowing agents comprising water, and optionally
- (d) chain extenders,
- (e) catalysts and
- (f) other auxiliaries,
- wherein the polyols (b) comprise polyetherols and the polyetherols comprise
- (b1) 50% to 90% by weight of at least one polyalkylene oxide having a hydroxyl number of from 120 to 300 mg KOH/g, based on a difunctional starter molecule, and an ethylene oxide content, based on a content of alkylene oxide, of from 60% to 100% by weight, and a proportion of primary OH groups of from 50% to 100%,
- (b2) 10% to 50% by weight of at least one polyalkylene oxide having a hydroxyl number of from 120 to 600 mg KOH/g, based on a difunctional and/or a trifunctional starter molecule, and an ethylene oxide content, based on a content of alkylene oxide, of from 0% to 40% by weight and
- (b3) 0% to 30% by weight of at least one further polyalkylene oxide having a hydroxyl number of from 100 to 800 mg KOH/g, based on a difunctional to tetrafunctional starter molecule, which differs from the polyetherols (b1) and (b2),
- based in each case on a total weight of components (b1) to (b3), wherein a proportion of the components (b1) to (b3) is 70% to 100% by weight, based on a total weight of the component (b).
A method of using an adhesive (C), preparable by mixing
- (a) polyisocyanates with
- (b) polyols having at least two isocyanate-reactive groups,
- (c) blowing agents comprising water and optionally
- (d) chain extenders,
- (e) catalysts and
- (f) other auxiliaries,
- wherein the polyols (b) comprise polyetherols and the polyetherols comprise
- (b1) 50% to 90% by weight of at least one polyalkylene oxide having a hydroxyl number of from 120 to 300 mg KOH/g, based on a difunctional starter molecule, and an ethylene oxide content, based on a content of alkylene oxide, of from 60% to 100% by weight, and a proportion of primary OH groups of from 50% to 100%,
- (b2) 10% to 50% by weight of at least one polyalkylene oxide having a hydroxyl number of from 120 to 600 mg KOH/g, based on a difunctional and/or a trifunctional starter molecule, and an ethylene oxide content, based on a content of alkylene oxide, of from 0% to 40% by weight and
- (b3) 0% to 30% by weight of at least one further polyalkylene oxide having a hydroxyl number of from 100 to 800 mg KOH/g, based on a difunctional to tetrafunctional starter molecule, which differs from the polyetherols (b1) and (b2),
- based in each case on a total weight of components (b1) to (b3),
- wherein a proportion of the components (b1) to (b3) is 70% to 100% by weight, based on a total weight of the component (b),
- the method comprising using the adhesive (C) for bonding of thermal insulation material (B).
- Composite elements of thermal insulation material, adhesive and outer layer
Dependencies are inferred from the claim text.