45results about How to "High Shore hardness" patented technology

The present invention is a balloon catheter used primarily in treatment and surgery for the purpose of dilating lesion sites such as strictures or blockages in passages in the human body. The balloon catheter of the present invention has a structure wherein a guide wire passing tubular member is deployed passing through the interior of the expansion body, and the outer surface of the tubular member and the expansion body are concentrically fused near the distal end of the catheter. This is a balloon catheter that is characterized by the fact that the Shore hardness of the material configuring the outermost surface of the tubular member is smaller than the Shore hardness of the material configuring the expansion body. It is therefore possible to flexibly adjust the tip portion formed by securing the expansion body and the guide wire passing tubular member.

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).

A printing material for a three-dimensional (3D) printing apparatus is provided. The printing material includes a core and a shell covering the core, wherein the Shore hardness of the core is A45-A90, the Shore hardness of the shell is D40-D85, the Shore hardness of the shell is higher than the Shore hardness of the core, the volume percentage of the shell is 10% to 30%, and the volume percentage of the core is 70% to 90%. Since the printing material has a specific structure, feed abnormality during the printing material passing through a narrow inlet hole and guide tube may be prevented in the use of low-hardness material as the core.

Disclosed are injection-moldable fluororesin compositions of melt flowable fluororesin and mesoporous silica. The fluororesin compositions are melt flowable and have a melt flow rate of from 2 to 60 g / 10 min. The mesoporous silica has an average pore diameter of from 2 to 50 nm, and the pores of the mesoporous silica are filled with the melt flowable fluororesin. The fluororesin compositions have excellent melt moldability for manufacturing molded products from the fluororesin composition that demonstrate high hardness.

The invention relates to an additive with a functional group double-terminated structure as well as a preparation and application of the additive. The additive has a chemical structural formula as shown in the specification, wherein n is an oxidation state of metal M and is equal to 2, 3 or 4; A is one of oxygen, sulfur, carbon, nitrogen, phosphorus and silicon, and x is larger than or equal to 0and is smaller than or equal to 10; B is one of oxygen, sulfur, carbon, nitrogen, phosphorus and silicon, and y is larger than or equal to 0 and is smaller than or equal to 10; (AxBy)m shows that atoms are connected by chemical bonds, and x and y are not zero at the same time; m is larger than or equal to 0 and is smaller than or equal to 10; z is smaller than or equal to 50; R1 and R2 are aliphatic chains, alicyclic hydrocarbons or aromatic compounds of which the carbon atom numbers do not exceed 50; and F1 and F2 are organic groups with functional groups and have different structures. The additive prepared by using the preparation method can be introduced to rubber compositions so as to comprehensively improve the hardness, wet skid resistance, dynamic mechanical property and tensile property of rubber, and even, in parts of exemplary embodiments, the rubber compositions containing the additive with the functional group double-terminated structure have improved Shore hardness, elongation at break and wet skid resistance.