Crosslinkable compositions based on organosilicon compounds

A technology of organosilicon compound and composition, which is applied in the direction of fabric, textile, transportation and packaging, etc., and can solve the problems of deterioration of physical properties of elastic coating, reduction of outer coating, deterioration of coating performance, etc.

Inactive Publication Date: 2007-01-10
WACKER CHEM GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] WO 01 / 12895 A1 describes a marked deterioration of the physical properties of elastic coatings by means of lamellar fillers, so that the use of filler-modified coatings of this type described in EP 0 953 675 A2 is currently limited only to applications as topcoats
[0005] German Patent No. 102 113 14 proposes the use of lamellar to platelet effective fillers to minimize the coefficient of friction of crosslinkable compositions and coatings, which leads to undesired surface effects and insufficient processability
[0006] European Patent No. 0 712 956 describes a coating with an organic / inorganic spherical composition, which also depends on the particle size leading to a deterioration of the coating properties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0116] Example 1, (BE-1), an optimized formulation containing talc as an effective filler, 128 g was dissolved from a viscosity of 1000 mm Pascal seconds, vinyl-terminated dimethylpolysiloxane and unfunctionalized silicate filler with an additional 70 grams of dimethylpolysiloxane and 110 grams of fine-grained thin film Layered solids (fine-grained talc) are incorporated under intense shear. And 22.6 grams of 1-dodecene, 6 grams of tetraethyl silicate, 0.4 grams of trimethylsilanol and 1.2 grams of platinum catalyst (1,3-divinyl-1,1,3,3-tetramethyl Platinum disiloxane complex containing 1% by weight of platinum), 10 g of methylhydrogenpolysiloxane and adhesion promoter (hydrogen content of 1.25% by weight, viscosity of 10 to 20 mPa·s) and 0.6 grams of ethynylcyclohexanol were mixed into the grinding batch. The viscosity was adjusted to 53,600 mPa·s.

Embodiment 2

[0117] Example 2, (BE-2), formulation containing mica as effective filler

[0118] Instead of fine-grained talc, 56 grams of coarse-grained muscovite were mixed into this example formulation (BE-1) under shear and the viscosity was comparable adjusted to 57,200 mPa·s.

Embodiment 3

[0119] Example 3, (BE-3), formulation containing spherical particles as effective filler

[0120] Instead of fine-grained talc, 16 g of nanoscale spherical particles mainly composed of quartz material were mixed into this example formulation (BE-1) under shear, and the viscosity was comparablely adjusted to 50,800 mPa·s .

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Abstract

The present invention relates to compositions comprising: (A, B) organosilicon compounds crosslinked by addition reactions; (D) at least one ovoid to spherical solid and at least one lamellar solid; and other at least An ingredient (E) selected from the group consisting of: (1) hydrocarbon compounds having at least 8 carbon atoms, wherein the hydrocarbon backbone can optionally be replaced by heteroatoms whose free valences are completely replaced by hydrogen or monovalent hydrocarbon groups Saturated; (2) silanes of the general formula (RO) 4-nSiXn, wherein the definitions of R and X are as described in the specification; (3) organic zirconium compounds or organic titanium compounds of the general formula (RO) 4-nMXn, wherein R , X and M are as defined in the description; optional (4) organic solvent, wherein the friction coefficient of the vulcanized rubber is lower than that of the formulation without particles (D).

Description

technical field [0001] The present invention relates to cross-linkable compositions based on organosilicon compounds and textile and non-textile sheets and moldings obtained therefrom. Background technique [0002] Numerous crosslinkable compositions based on organosilicon compounds with various types of fillers and additives are known. For example EP 1 152 080 A2 describes spherical particles on textiles fixed in an adhesive sheet, which are used in particular to reduce friction against the skin, while EP 0 953 675 A2 and WO 01 / 128 95 A1 mainly describe textile coatings. Lamellar fillers / particles within the layer, which are used to achieve a low coefficient of friction. Furthermore, DE 102 113 14 describes essentially lamellar plate-shaped fillers for reducing the adhesive-friction effect. [0003] At the same time it is often suggested to use lamellar extenders as effective fillers, for example to significantly worsen the adhesion to rubber. [0004] WO 01 / 12895 A1 des...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/04C08K9/06C08J5/00D03D15/00C08K5/54
CPCD06M23/08D06M15/3568C08G77/70D06M15/643C08K7/16C08K5/541Y10T428/31663D06N3/0063D06M11/79C08L83/04C08K5/56Y10T428/2995C08K7/00D06N3/0056D06N3/128C08G77/20C08G77/12C08L83/00C08J5/00
Inventor 阿尼塔·洛尔克
Owner WACKER CHEM GMBH
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