Resin additive master batch

Patent metadata

Field	Value
Publication number	US-9574068-B2
Application number	US-201214373423-A
Country	US
Kind code	B2
Filing date	Jul 31, 2012
Priority date	Feb 1, 2012
Publication date	Feb 21, 2017
Grant date	Feb 21, 2017

Abstract

Provided is an additive masterbatch having excellent storage stability (agglomeration resistance), which also has reduced surface tackiness despite comprising a low-melting-point resin additive at a high concentration. The additive masterbatch of the present invention is characterized by comprising, with respect to 100 parts by mass of (A) a polyolefin resin, 65 to 300 parts by mass of (B) a resin additive having a melting point of not higher than 80° C.; and 0.8 to 24 parts by mass of (C) a benzotriazole-based ultraviolet absorber.

First claim

The invention claimed is:

1. A resin additive masterbatch, comprising:
with respect to 100 parts by mass of (A) a polyolefin resin,
65 to 300 parts by mass of (B) a resin additive having a melting point of not higher than 80° C. comprises at least one hindered amine compound represented by the following Formula (1)

wherein, R 1 represents a hydrogen atom; and R 2 represents an alkyl group having 1 to 30 carbon atoms; and
0.8 to 24 parts by mass of (C) a benzotriazole-based ultraviolet absorber of at least one compound represented by the following Formula (2) and/or (5):

wherein, R 3 and R 4 each independently represent a hydrogen atom or a methyl group; R 5 and R 6 each independently represent an alkyl group having 1 to 18 carbon atoms; and R 7 and R 8 each represent a hydrogen atom; and

wherein, R 15 represents a hydrogen atom; and R 16 and R 17 each independently represent a hydrogen atom, an alkyl group having 1 to 18 carbon atoms or an aralkyl group having 7 to 18 carbon atoms.

2. The resin additive masterbatch according to claim 1 , wherein said R 2 in said Formula (1) is a mixture of alkyl groups having 8 to 26 carbon atoms.

3. The resin additive masterbatch according to claim 1 , wherein
said (B) resin additive having a melting point of not higher than 80° C. further comprises at least one benzoate compound represented by the following Formula (4); and
the content ratio of said hindered amine compound and said benzoate compound is, in terms of mass ratio, in the range of 1:1 to 4:1:

wherein, R 12 and R 13 each independently represent a hydrogen atom, an alkyl group having 1 to 12 carbon atoms or an arylalkyl group having 7 to 30 carbon atoms; and R 14 represents an alkyl group having 1 to 30 carbon atoms.

4. The resin additive masterbatch according to claim 1 , which further comprises at least one (D) metal aromatic phosphate represented by the following Formula (3) in an amount of 0.3 to 5 parts by mass with respect to 100 parts by mass of said (A) polyolefin resin:

wherein, R 9 represents an alkyl group having 4 to 8 carbon atoms; R 10 represents a hydrogen atom or an alkyl group having 1 to 8 carbon atoms; R 11 represents an alkylidene group having 1 to 4 carbon atoms; and X 1 represents an alkali metal atom, an alkaline earth metal atom or an aluminum atom, with provisos that: when X 1 is an alkali metal atom, n is 1 and q is 0; when X 1 is an alkaline earth metal atom, n is 2 and q is 0; and when X 1 is an aluminum atom, n is 1 or 2 and q is (3-n).

5. The resin additive masterbatch according to claim 2 , which further comprises at least one (D) metal aromatic phosphate represented by the following Formula (3) in an amount of 0.3 to 5 parts by mass with respect to 100 parts by mass of said (A) polyolefin resin:

wherein, R 9 represents an alkyl group having 4 to 8 carbon atoms; R 10 represents a hydrogen atom or an alkyl group having 1 to 8 carbon atoms; R 11 represents an alkylidene group having 1 to 4 carbon atoms; and X 1 represents an alkali metal atom, an alkaline earth metal atom or an aluminum atom, with provisos that: when X 1 is an alkali metal atom, n is 1 and q is 0; when X 1 is an alkaline earth metal atom, n is 2 and q is 0; and when X 1 is an aluminum atom, n is 1 or 2 and q is (3-n).

6. The resin additive masterbatch according to claim 3 , which further comprises at least one (D) metal aromatic phosphate represented by the following Formula (3) in an amount of 0.3 to 5 parts by mass with respect to 100 parts by mass of said (A) polyolefin resin:

wherein, R 9 represents an alkyl group having 4 to 8 carbon atoms; R 10 represents a hydrogen atom or an alkyl group having 1 to 8 carbon atoms; R 11 represents an alkylidene group having 1 to 4 carbon atoms; and X 1 represents an alkali metal atom, an alkaline earth metal atom or an aluminum atom, with provisos that: when X 1 is an alkali metal atom, n is 1 and q is 0; when X 1 is an alkaline earth metal atom, n is 2 and q is 0; and when X 1 is an aluminum atom, n is 1 or 2 and q is (3-n).

7. A polyolefin resin composition, comprising the resin additive masterbatch according to claim 1 and a polyolefin resin.

8. The resin additive masterbatch of claim 1 , wherein said (C) benzotriazole-based ultraviolet absorber is at least one compound represented by the Formula (2).

9. The resin additive masterbatch of claim 1 , wherein said (C) benzotriazole-based ultraviolet absorber is at least one compound represented by the Formula (5).

Assignees

• Ayabe Takashi
• Yamashita Kenji
• Yamamoto Naoki
• Adeka Corp

Inventors

• Ayabe Takashi
• Yamashita Kenji
• Yamamoto Naoki

Classifications

• C08K5/1345

  Carboxylic esters of phenolcarboxylic acids · CPC title

• C08K5/3435

  Piperidines · CPC title

• C08K5/3475 Primary

  condensed with carbocyclic rings · CPC title

• C08L23/02

  not modified by chemical after-treatment · CPC title

• C08L23/10

  Homopolymers or copolymers of propene · CPC title