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Core-shell particle composition, method and article

一种颗粒、混合物的技术，应用在核－壳颗粒组合物、及制品领域，能够解决产品成本增加、含硅石橡胶组合物性能下降等问题

Inactive Publication Date: 2009-06-17
SABIC INNOVATIVE PLASTICS IP BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The addition of the coupling agent leads to an increase in product cost and a decrease in the performance of the silica-containing rubber composition

Method used

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  • Core-shell particle composition, method and article
  • Core-shell particle composition, method and article
  • Core-shell particle composition, method and article

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] At 40° C., 70 grams of poly(2,6-dimethyl-1,4-phenylene ether) (PPE; available from GE Plastics and having an intrinsic viscosity of about 0.31 dl / g) and 55% 30 g of a mixture of polystyrene-polyisoprene diblock copolymer and 45% by weight polystyrene-polyisoprene-polystyrene triblock copolymer by weight (SI+SIS; D1113P, obtained from Kraton Polymers and having a polystyrene content of 16% by weight and a polyisoprene content of 84% by weight) was added to 3.3 liters (L) of tetrahydrofuran to make a 3% polymer solution. Stir the PPE / (SI+SIS) solution until homogeneous.

[0063] Antisolvent solution: Mix 6.2 L of methyl ethyl ketone (MEK) and 4.1 L of methanol (MeOH) to make 10.3 L of antisolvent solution, where the volume ratio of MEK to MeOH is 1.5:1.0 and the total volume of the antisolvent solution is 3 times the total volume of the PPE / (SI+SIS) solution.

[0064] Charging the system: Allow the poly(arylene ether) solution to come to room temperature, then immedia...

Embodiment 2

[0069] Embodiment 2, comparative example 1

[0070] These examples illustrate the effectiveness of the particles of the present invention in reducing heat build-up (HBU) in rubber compositions. According to ASTM D 3182-89, vulcanized rubber samples of the two compositions were prepared in the same manner using the formulations listed in Table 1. All contents in the table are listed in parts per 100 parts by weight of rubber (phr). The filler content per 100 parts by weight of rubber was kept constant between the two compositions. Example 2 Composition with filler consisting of carbon black, poly(arylene ether) component of core-shell particles, and polystyrene-polyisoprene-polystyrene triblock copolymer of core-shell particles composition of the polystyrene component (the polyisoprene component of the core-shell particles is counted as part of the rubber). The weight basis of Example 2 rubber consists of the sum of the weights of natural rubber and the polyisoprene component...

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Abstract

A core-shell particle including a core with poly(arylene ether) and a shell with an ethylenically unsaturated copolymer is described. Also described are a method of forming the particle, a composition including the particle, and an article including such a composition.

Description

Background technique [0001] Carbon black has historically been the reinforcing agent of choice for rubber-like products such as tires, as well as extruded and molded goods. Carbon black prepared by thermal decomposition of petroleum and natural gas greatly improves the mechanical strength and abrasion resistance of rubber-like products, and it has been an economically attractive method to improve the physical properties of rubber-like products. However, the increasing demand for other petrochemical products derived from oil or gas, and the dwindling supply of oil and gas have prompted the search for alternatives to carbon black. One substitute currently available is silica. [0002] Silica has also been used as a reinforcing agent for rubber-like compositions, but these compositions require the use of a secondary coupling agent in addition to the sulfur vulcanizing agent required for the rubber. This additional coupling agent is needed to graft the silica onto the backbone o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J3/12C08L71/12C08L51/08C08L53/02
CPCC08L53/02C08J3/126C08L71/123C08L51/08C08J2453/02C08J2371/12C08J3/122C08L51/00C08L53/00C08L2666/24C08J3/12C08F279/02C08F283/06
Inventor 本·帕特尔布伦南·史密斯诺伯托·西尔维加里·W·耶格尔维杰·戈帕拉克里什南
Owner SABIC INNOVATIVE PLASTICS IP BV
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