polymer composition

A technology of composition and polymer, which is applied in the field of polymer composition and can solve problems such as unavailability

Active Publication Date: 2017-12-12
LANXESS DEUTDCHLAND GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This processing requires certain conditions and equipment which may not be available at all to customers simply wanting to apply this technology

Method used

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[0075] In order to improve the preparation of rubber compositions, it is desirable that the metal halide is further complexed with a complexing agent such as water, alcohol and ether. Such complexed metal halides have improved solubility and dispersibility in rubber compositions. A preferred example is tin dichloride dihydrate. The preferred amount of metal halide as activator package iii) is from 0.25 to 5.0 parts, preferably 0.5 to 2 parts, per 100 parts of elastomeric polymer i).

[0076] In another preferred embodiment of the invention, the activator package iii) comprises a halogenated organic compound.

[0077] Suitable halogenated organic compounds are those from which the hydrogen halide is split off in the presence of the metal compound.

[0078] Halogenated organic compounds include, for example, polymers or copolymers of vinyl chloride and / or vinylidene chloride and other polymerizable compounds, halogen-containing plastics, such as polychloroprene; halogenated, s...

example

[0112] general program

[0113] The zeolite / polymer masterbatch compositions of the examples were prepared using an internal mixer (Shaw K1 Mark IV Intermix) having a capacity of 3 liters with intermeshing rotating blades and an onset temperature of 25°C. Zeolite 5A was weighed and the zeolite / polymer masterbatch mixed for no more than 10 minutes thereafter. The elastomeric polymer is first introduced into the mixer and allowed to comminute for a period of 30 seconds using a rotor speed of 45 rpm before adding the zeolite 5A powder (which is an aluminosilicate powder with a particle size below 50 μm), at a rate of less than A moisture content of 1.5 wt% was supplied. Mixing was carried out maintaining the same rotational speed until a batch temperature of 140°C was achieved for the 40wt% masterbatch, taking 8 minutes of total mixing time, and 155°C for the 80wt% masterbatch, taking a total mixing time of 13 minutes, at which point the batches were Once removed from the inter...

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Abstract

A polymer composition comprising: a) a polymer, b) a zeolite, wherein the total amount of these components a) and b) in the composition is higher than 90 wt%, in particular higher than 94 wt%, more preferably high The total amount of water measured by TGA at a rate of 5°C / min in the temperature range from 25 to 380°C is less than 15% by weight at 98% by weight and based on the amount of residue obtained after TGA measurement continued to 550°C .

Description

technical field [0001] The present invention relates to a polymer composition, a method for its manufacture and its use for curing a resin comprising a curable polymer composition. Background technique [0002] Zeolites as known from EP2441798 and EP2650327 are used to improve the curing rate and the curing state of resinous crosslinkers in curable rubber compositions. To achieve these desired benefits, zeolites are used in activated form, primarily by drying to remove moisture or other volatiles that can deactivate the zeolites. This processing requires certain conditions and equipment that may not be available at all to customers simply wanting to apply this technology. It was therefore an object of the present invention to find out how to provide zeolites for this curing reaction without losing too much of their activity to give reproducibly good curing results. Contents of the invention [0003] This object is achieved by providing a polymer composition comprising: ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L21/00C08L23/00C08L23/16C08L23/22C08K3/22
CPCC08L21/00C08K3/34C08L23/16C08K2201/014C08J3/226C08J2309/00C08J2321/00C08J2409/00C08J2461/06C08K2003/2227C08J3/24C08L9/00C08L2205/025C08L2205/03C08L2207/04
Inventor 菲利普·胡格马丁·范 杜因
Owner LANXESS DEUTDCHLAND GMBH
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