公开(公告)号：US10227421B2

公开(公告)日：2019-03-12

申请号：US15399125

申请日：2017-01-05

Applicant: Lehigh Technologies, Inc.

Inventor： Chad Aaron Jasiunas ,  Frank P. Papp ,  Charles T. Rosenmayer ,  Adel Farhan Halasa

IPC: C08C19/22 ,  C08K5/43 ,  C08K5/31 ,  C08L9/06 ,  B60C1/00 ,  C08C19/08 ,  C08J11/28 ,  C08L19/00 ,  C08K3/04 ,  C08K5/09 ,  C08K5/40 ,  C08K5/435 ,  C08L9/00 ,  C08L17/00 ,  C08L91/00 ,  B60C9/00 ,  C08K3/22

Abstract: The renewed rubber of this invention can be used in rubber formulations that are used in manufacturing a wide array of rubber products, including tires, power transmission belts, conveyor belts, hoses, and a wide array of other products. The present invention more specifically discloses a method for manufacturing an environmentally friendly, chemically functionalized, renewed rubber composition having a highly desirable combination of physical properties and which exhibits excellent processability comprising the steps of (1) blending a micronized rubber powder with a processing aid and a chemical functionalizing agent to produce a blended mixture; (2) processing the blended mixture under conditions of high shear and low temperature to produce a reacted mixture; (3) adding a stabilizer to the reacted mixture to produce the chemically functionalized renewed rubber composition.

公开(公告)号：US09598564B2

公开(公告)日：2017-03-21

申请号：US15013702

申请日：2016-02-02

Applicant: LEHIGH TECHNOLOGIES, INC.

Inventor： Chad Aaron Jasiunas ,  Frank P. Papp ,  Charles T. Rosenmayer ,  Adel Farhan Halasa ,  Glenn Denstaedt

IPC: C08L17/00 ,  C08L9/00 ,  C08L9/06 ,  B60C11/00 ,  B60C13/00 ,  B60C9/02 ,  B60C15/00 ,  B60C1/00 ,  C08C19/08 ,  C08C19/22 ,  C08J11/28 ,  C08K5/31 ,  C08K5/43 ,  C08L19/00

CPC classification number: C08L9/06 ,  B60C1/00 ,  B60C1/0016 ,  B60C9/02 ,  B60C11/0008 ,  B60C13/00 ,  B60C15/00 ,  C08C19/08 ,  C08C19/22 ,  C08J11/28 ,  C08J2319/00 ,  C08J2321/00 ,  C08K3/04 ,  C08K5/09 ,  C08K5/31 ,  C08K5/40 ,  C08K5/43 ,  C08K5/435 ,  C08K2003/2296 ,  C08L9/00 ,  C08L17/00 ,  C08L19/003 ,  C08L91/00 ,  C08L2201/08 ,  C08L2205/02 ,  C08L2205/03 ,  C08L2205/06 ,  C08L2207/24

Abstract: This invention relates to certain rubber formulations which exhibit a low level of hysteresis which are comprised of a chemically functionalized renewed rubber and virgin solution styrene-butadiene rubber. These rubber formulations are loaded with a reinforcing silica. The rubber formulations of this invention can be utilized in making rubber products such as, tires, tracks, and conveyor belts which will promote energy savings by virtue of their low hysteretic properties. The present invention more specifically discloses a rubber composition which is comprised of (1) a solution styrene-butadiene rubber; (2) a functionalized renewed rubber composition which is comprised of an elastomeric polymer and a stabilizer; wherein the rubber composition has a crosslink density which is within the range of 0.05 to 2.0×10−5 mole/g, and wherein the rubber composition has a solubility fraction of less than 90 percent; and (3) a reinforcing filler including reinforcing silica.