4-methyl-1-pentene polymer, resin composition containing 4-methyl-1-pentene polymer, masterbatch thereof, and formed product thereof

Patent metadata

Field	Value
Publication number	US-9657117-B2
Application number	US-201414274581-A
Country	US
Kind code	B2
Filing date	May 9, 2014
Priority date	Jul 10, 2008
Publication date	May 23, 2017
Grant date	May 23, 2017

Abstract

[Object] To provide a resin composition with excellent mold releasability and blocking resistance.
[Solution] A resin composition containing a 4-methyl-1-pentene polymer includes 0.01 to 10 parts by mass of a 4-methyl-1-pentene polymer (B) per 100 parts by mass of at least one resin (A) selected from the group consisting of thermoplastic resins and thermosetting resins, wherein the 4-methyl-1-pentene polymer (B) has (B1) an intrinsic viscosity [η] of 0.01 or more but less than 0.50 dl/g measured at 135° C. in a decalin solvent.

First claim

The invention claimed is:

1. A formed product containing a 4-methyl-1-pentene polymer, comprising 0.01 to 10 parts by mass of a 4-methyl-1-pentene polymer (B-1) per 100 parts by mass of a propylene resin composition (X),
wherein:
the 4-methyl-1-pentene polymer (B-1) has
(B1) an intrinsic viscosity [η] of 0.01 or more but less than 0.50 dl/g measured at 135° C. in a decalin solvent, and
(B4) a melting point (Tm) in the range of 120° C. to 245° C. as measured with a differential scanning calorimeter, and
the propylene resin composition (X) contains 60 to 100 parts by weight of a propylene polymer (A-1) and 0 to 40 parts by weight of a propylene polymer (A-2) (the total of the (A-1) component and the (A-2) component is 100 parts by weight),
the propylene polymer (A-1) has
(A-1-1) a Shore A hardness in the range of 20 to 94,
(A-1-2) a constitutional unit derived from propylene in the range of 51% to 100% by mole, and
(A-1-3) a melting point less than 100° C. or no melting point as measured by DSC, and
the propylene polymer (A-2) has
(A-2-1) a melting point of 100° C. or more but less than 175° C. as measured by DSC.

2. The formed product according to claim 1 , wherein the resin composition containing a 4-methyl-1-pentene polymer experienced a shear and/or uniaxial, biaxial, or planar elongational flow in a molten state.

3. A film comprising a formed product according to claim 2 .

4. A multilayer film, comprising a film according to claim 3 , and an adhesive layer.

5. A formed product containing a 4-methyl-1-pentene polymer, comprising 0.01 to 100 parts by mass of a 4-methyl-1-pentene polymer (B-2) per 100 parts by mass of a propylene resin composition (X),
wherein the 4-methyl-1-pentene polymer (B-2) has
(B11) an intrinsic viscosity [η] of 0.01 or more but less than 3.0 dl/g measured at 135° C. in a decalin solvent, and
(B6) satisfies the relationship expressed by the following formula (I):
A≦ 0.2≦[η] (−1.5)   (I)

wherein A denotes the percentage (% by mass) of a component having a polystyrene equivalent molecular weight of 1,000 or less in the 4-methyl-1-pentene polymer as measured by gel permeation chromatography (GPC), and [η] denotes the intrinsic viscosity (dl/g) of the 4-methyl-1-pentene polymer measured in a decalin solvent at 135° C. and
(B4) a melting point (Tm) in the range of 120° C. to 245° C. as measured with a differential scanning calorimeter, and
the propylene resin composition (X) contains 60 to 100 parts by weight of a propylene polymer (A-1) and 0 to 40 parts by weight of a propylene polymer (A-2) (the total of the (A-1) component and the (A-2) component is 100 parts by weight),
the propylene polymer (A-1) has
(A-1-1) a Shore A hardness in the range of 20 to 94,
(A-1-2) a constitutional unit derived from propylene in the range of 51% to 100% by mole, and
(A-1-3) a melting point less than 100° C. or no melting point as measured by DSC, and
the propylene polymer (A-2) has
(A-2-1) a melting point of 100° C. or more but less than 175° C. as measured by DSC.

6. The formed product according to claim 5 , wherein the resin composition containing a 4-methyl-1-pentene polymer experienced a shear and/or uniaxial, biaxial, or planar elongational flow in a molten state.

7. A film comprising a formed product according to claim 6 .

8. A multilayer film, comprising a film according to claim 7 , and an adhesive layer.

Assignees

• Mitsui Chemicals Inc

Inventors

• Kawabe Kuniaki
• Sutou Masayoshi
• Itou Toshiyuki
• Kurihara Mai
• Etoh Akinori
• Asao Shinichirou
• Sugimura Kenji
• Hoya Hiroshi
• Matsunaga Koji
• Hayakawa Yoji
• Mizumoto Kunihiko

Classifications

• C08F210/14 Primary

  Monomers containing five or more carbon atoms · CPC title

• C08J2323/02

  not modified by chemical after treatment · CPC title

• C09J7/0264

  Chemistry & Metallurgy · mapped topic

• Y10T428/28

  Web or sheet containing structurally defined element or component and having an adhesive outermost layer · CPC title

• C08F210/06

  Propene · CPC title