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Polymer composition

A polymer and composition technology, applied in building construction, film/sheet adhesives, building components, etc., can solve problems such as poor affinity

Inactive Publication Date: 2007-06-06
ASAHI KASEI KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this modified polymer is actually obtained by attempting to use 1,5-diaza-bicyclo[3.1.0]cyclohexane and its derivatives, and Schiff bases from aliphatic or aromatic amines and aldehydes ( Schiff base) obtained by modification method, and the obtained polymer (modified by amide group with terminal acid group or its salt) has poor affinity with thermoplastic resin and / or rubbery polymer, inorganic filler, etc.
[0009] Thus, in the prior art, as a composition composed of a block copolymer composed of a vinyl aromatic hydrocarbon and a conjugated diene and a thermoplastic resin and / or a rubbery copolymer, none of them have outstanding rigidity and impact resistance. sexually balanced composition

Method used

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  • Polymer composition
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～8、 comparative example 1～6

[0567] Examples 1 to 8 and Comparative Examples 1 to 6 are based on the mixing formula shown in Table 3, with a specified amount of thermoplastic resin, primary modified block copolymer or unmodified block copolymer, and secondary modified agent dry mixing, relative to 100 parts by weight of the mixture, then add 0.3 parts by weight of 2-tert-amyl-6-[1-(3,5-di-tert-amyl-2-hydroxyphenyl) ethyl as a stabilizer Base]-4-tertiary aminophenyl acrylate, using a 30mmφ twin-rod extruder at 250°C when the thermoplastic resin is PET, and at 260°C when the thermoplastic resin is polyamide, screw at 250rpm Number of rotations A resin composition was obtained by melt-kneading. Table 3 shows the physical properties of the obtained composition.

[0568] Compounding (parts by weight)

[0569] * 1: Secondary modifier D1: Maleic anhydride D2: Tetraglycidyl-1,3-diaminomethylcyclohexane

Embodiment 9～13、 comparative example 7、8

[0571] In Examples 9 to 13 and Comparative Examples 7 and 8, secondary modified block copolymers or unmodified block copolymers are used, and the same compound as in Examples 1 to 8 is used according to the mixing formula shown in Table 4. Method to obtain a resin composition. The composition and physical properties of the composition are shown in Table 4. Also, "P-2 / D2 (1.2mol / Li)" of Comparative Example 7 and Comparative Example 8 of Table 4 refers to "the mixture of polymer P-2 and secondary modifying agent, when preparing polymer P-2 The concentration of D2 is 1.2 moles per mole of butyllithium added".

[0572] Compounding (parts by weight)

Flexibility

(MPa)

Izod impact strength

(J / m)

Resins with functional groups

block copolymer

secondary modifier

*1

Example 9

PET

80

2P-1

20

-

1340

510

Example 10

PET ...

Embodiment 14～21、 comparative example 9～11

[0596] Examples 14 to 21 and Comparative Examples 9 to 11 are flame retardant polymer compositions compounded according to the mixing formula shown in Table 6. With respect to 100 parts by weight of the hydrogenated product of the primary modified block copolymer, the prescribed amount of inorganic flame retardant, secondary modifier and polypropylene, and 0.03 parts by weight of 2-tert-amyl-6-[1-(3,5-di-tert-amyl-2-hydroxyl) as stabilizer Phenyl)ethyl]-4-tert-aminophenyl acrylate, flame retardant polymer composition pellets were obtained by melt kneading at 220° C. with a 30 mmφ twin-bar extruder. Samples for physical property evaluation were produced by injection molding the obtained pellets. The physical properties of the composition are shown in Table 6.

[0597] Example 14

Example 15

Example 16

Example 17

Example 18

Example 19

Example 20

Example 21

Comparative Example 10

Comparative Example 11

block copolymer

(pa...

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Abstract

A second-order modified block copolymer which can be obtained by reacting a first-order modified block copolymer with a second-order modifier, wherein the first-order modified block copolymer comprises a base block copolymer and a functional group-containing first-order modifier group bonded to the base block copolymer, wherein the base block copolymer comprises at least one polymer block comprised mainly of vinyl aromatic hydrocarbon monomer units and at least one polymer block comprised mainly of conjugated diene monomer units, and wherein the second-order modifier has a specific functional group which is reactive to the functional group of the first-order modifier group of the first-order modified block copolymer. A second-order modified block copolymer-containing polymer composition comprising the second-order modified block copolymer as well as a thermoplastic resin and / or a rubbery polymer.

Description

[0001] This application is a divisional application of 02813151.7, the filing date is July 18, 2002, and the invention name is "modified block copolymer". technical field [0002] The present invention relates to a modified block copolymer suitable for preparing a polymer composition excellent in balance of rigidity and impact resistance. More specifically, the present invention relates to modified block copolymers (hereinafter often referred to as "secondarily modified block copolymers") obtained by including a base block copolymer and containing A semi-modified block copolymer of a primary modifier group with a combined functional group (hereinafter often referred to as a "primary modified block copolymer") is formed by reacting with a secondary modifier having another specific functional group , wherein the base block copolymer comprises at least one polymer block primarily comprising vinyl aromatic hydrocarbon monomer units and at least one polymer block primarily comprisi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L53/02C08L95/00C09J153/02C09J7/02C08L67/00C08L77/00C08L69/00C08L75/04C08L71/00C08L59/02
Inventor 久保伸明草乃濑康弘中岛滋夫松田孝昭高山茂树白木利典
Owner ASAHI KASEI KK