Patent ID: 6630204
Filing Date: 2003-10-07
Classification: C08G

Abstract:
A method of applying a coating to a substrate, comprising the steps ofa) mixing mass fractions of the following constituents to form a mixture: â€‚â€‰20 to 90%of at least one functionalised low-molecular rubber A, with functional reactivegroups selected from the group consisting ofhydroxyl groups, carboxylic acid anhydridegroups, carboxylic groups, amine groups andisocyanate groupsâ€‚â€ƒâ€‰2 to 50%of at least one cross-linking agent B withfunctional reactive groups selected from thegroup consisting of hydroxyl groups,carboxylic acid anhydride groups, carboxylgroups, amine groups and isocyanate groups,with the proviso that the functional reactivegroups of the rubber A and those of the cross-linking agent B are chosen in such way that byreaction of these, there is formed a bondselected from the group consisting of a urethane bond, an ester bond, a urea bond, andan acid amine bond,0.01 to 10%accelerators or catalysts C for the pre-cross-linking reaction between A and B,â€ƒâ€‰0 to 60%reactive diluents D,â€ƒâ€‰1 to 50%vulcanisation chemicals E,â€ƒâ€‰5 to 50%fillers F and auxiliary substances G,wherein the sum of the mass fractions in the said mixture must always be 100%, and wherein at least one of the average functionalities of the constituents A or B is at least 2,b) applying the said mixture to a substrate, wherein, as a result of reaction of the component A with the component B, the viscosity of the said mixture is increased within 30 minutes to at least the three-fold value, and c) heating the coated substrate to effect vulcanisation.