Resin blend

• US 9,296,888 B2
• Filed: 11/28/2012
• Issued: 03/29/2016
• Est. Priority Date: 05/28/2010
• Status: Active Grant

• Current Assignee: LG Chem Limited (LG Corporation)
• Original Assignee: LG Chem Limited (LG Corporation)
• Inventors: Ryu, Jin Young, Yoo, Houng Sik, Kim, Hak Shin, Hong, Young Jun, Shin, Chong Kyu, Choi, Eun Joo
• Primary Examiner(s): PATEL, RONAK C
• Application Number:
  US13/688,166
• Publication Number:
  US 20130164485A1
• Time in Patent Office: 1,217 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: B29C 48/022 characterised by the choice of material
• CPC Class Codes: B29C 48/21 the layers being joined at their surfaces
• CPC Class Codes: B29K 2029/04 PVOH, i.e. polyvinyl alcohol B29K2031/04 takes precedence
• CPC Class Codes: B29K 2033/12 Polymers of methacrylic acid esters, e.g. PMMA, i.e. polymethylmethacrylate
• CPC Class Codes: B29K 2105/0088 Blends of polymers
• CPC Class Codes: B29K 2105/0094 having particular viscosity
• CPC Class Codes: B32B 27/08 of synthetic resin
• CPC Class Codes: B32B 3/02 characterised by features of form at particular places, e.g. in edge regions non-uniform thickness B32B3/263
• CPC Class Codes: C08J 2300/00 Characterised by the use of unspecified polymers
• CPC Class Codes: C08J 2300/22 Thermoplastic resins
• CPC Class Codes: C08J 2323/06 Polyethene
• CPC Class Codes: C08J 2400/00 Characterised by the use of unspecified polymers
• CPC Class Codes: C08J 2400/22 Thermoplastic resins
• CPC Class Codes: C08J 3/005 Processes for mixing polymers
• CPC Class Codes: C08J 5/00 Manufacture of articles or shaped materials containing macromolecular substances manufacture of semi-permeable membranes B01D67/00 - B01D71/00
• CPC Class Codes: C08L 101/00 Compositions of unspecified macromolecular compounds
• CPC Class Codes: C08L 101/12 characterised by physical features, e.g. anisotropy, viscosity or electrical conductivity liquid crystal materials or compositions C09K19/00
• CPC Class Codes: C08L 2201/02 Flame or fire retardant/resistant
• CPC Class Codes: C08L 25/12 with unsaturated nitriles
• CPC Class Codes: C08L 29/04 Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
• CPC Class Codes: C08L 33/04 : Homopolymers or copolymers of esters C08L43/04 takes precedence
• CPC Class Codes: C08L 33/12 : Homopolymers or copolymers of methyl methacrylate
• CPC Class Codes: C08L 33/16 : Homopolymers or copolymers of esters containing halogen atoms
• CPC Class Codes: C08L 37/00 : Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a heterocyclic ring containing oxygen of cyclic esters of polyfunctional acids C08L31/00; of cyclic anhydrides of unsaturated acids C08L35/00; Compositions of derivatives of such polymers
• CPC Class Codes: C08L 55/02 : ABS [Acrylonitrile-Butadiene-Styrene] polymers
• CPC Class Codes: C08L 9/00 : Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
• CPC Class Codes: C08L 9/06 : Copolymers with styrene
• CPC Class Codes: G01N 21/3563 : for analysing solids; Preparation of samples therefor
• CPC Class Codes: Y10T 428/239 : Complete cover or casing
• CPC Class Codes: Y10T 428/2998 : including synthetic resin or polymer
• CPC Class Codes: Y10T 428/31504 : Composite [nonstructural laminate]

Abstract

Provided are a resin blend for melt processing, a pellet and a method of preparing a resin article using the same. The resin blend may include a first resin, and a second resin having a difference in surface energy from the first resin at 25° C. of 0.1 to 35 mN/m. The resin blend can improve mechanical and surface characteristics of a resin article. Further, since coating or plating is not required for manufacturing a resin article, a manufacturing time and/or cost can be reduced, and productivity can be increased.

Claims

1. A resin blend for melt processing, comprising:

a first resin; and

a second resin having a difference in surface energy from the first resin at 25°

C. of 0.1 to 35 mN/m,

wherein the resin blend contains a content of the second resin that is 0.1 to 50 parts by weight based on 100 parts by weight of the first resin,

wherein the resin blend is capable of forming a layer-separated structure during melting process under a shear stress,

wherein the second resin has a molecular weight distribution of 1.9 to 2.1 and a weight average molecular weight of 30,000 to 200,000, and

wherein the second resin includes at least one selected from the group consisting of a (meth)acrylate-based resin, an epoxy-based resin, an oxetane-based resin, an isocyanate-based resin, and a copolymer thereof and wherein the first resin includes at least one selected from the group consisting of a styrene-based resin, a thermoplastic elastomer, a polyoxyalkylene-based resin, a polyvinyl chloride-based resin, a polycarbonate-based resin, a polyphenylene sulfide-based resin, a vinyl alcohol-based resin, an acrylate-based resin, engineering plastics and a copolymer thereof.

2. A resin blend for melt processing, comprising:

a first resin; and

a second resin having a difference in surface energy from the first resin at 25°

C. of 0.1 to 35 mN/m, wherein the resin blend contains a content of the second resin that is 0.1 to 50 parts by weight based on 100 parts by weight of the first resin, wherein the resin blend is capable of forming a layer-separated structure during the melting process under a shear stress, wherein the second resin has a molecular weight distribution of 1.9 to 2.1 and a weight average molecular weight of 30,000 to 200,000, and wherein the second resin includes at least one selected from the group consisting of an anti-wear resin, an anti-contamination resin, an anti-fingerprint resin, a colored resin, a pearl resin, a high-gloss resin, a non-gloss resin and a barrier resin, and wherein the first resin includes at least one selected from the group consisting of a styrene-based resin, a thermoplastic elastomer, a polyoxyalkylene-based resin, a polyvinyl chloride-based resin, a polycarbonate-based resin, a polyphenylene sulfide-based resin, a vinyl alcohol-based resin, an acrylate-based resin, engineering plastics and a copolymer thereof.

3. A resin blend for forming a layer-separated structure,

a base resin;

and

a functional resin having a difference in surface energy from the base resin at 25°

C. of 0.1 to 35 mN/m,

wherein the resin blend is capable of forming a layer-separated structure during the melting process under a shear stress,

wherein the functional resin has a molecular weight distribution of 1.9 to 2.1 and a weight average molecular weight of 30,000 to 200,000,

wherein the functional resin includes at least one selected from the group consisting of a (meth)acrylate-based resin, an epoxy-based resin, an oxetane-based resin, an isocyanate-based resin, and a copolymer thereof wherein the base resin includes at least one selected from the group consisting of a styrene-based resin, a thermoplastic elastomer, a polyoxyalkylene-based resin, a polyvinyl chloride-based resin, a polycarbonate-based resin, a polyphenylene sulfide-based resin, a vinyl alcohol-based resin, an acrylate-based resin, engineering plastics and a copolymer thereof,

wherein a value of the surface energy of the functional resin is dependent on the properties of the base resin, and

wherein the resin blend contains a content of the functional resin that is 0.1 to 50 parts by weight based on 100 parts by weight of the base resin.