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Polymer composition for use in electroless plating, method of electroless plating and polymer article made by electroless plating

A composition, electroless technology, used in elastic polymer dielectrics, printed circuit manufacturing, printed circuit dielectrics, etc.

Pending Publication Date: 2022-05-27
SABIC GLOBAL TECH BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] A challenge currently facing electroless plating is to obtain articles with proper adhesion between the metal plating and the polymeric substrate, even after repeated severe temperature cycles
In addition, another challenge currently facing electroless plating is to provide a reasonably wide processing window that allows for article forming (e.g. by injection molding) and subsequent electroless plating (often followed by electrolytic plating—that is, plating of additional metal layers), while at the same time Compositions providing good properties in articles

Method used

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  • Polymer composition for use in electroless plating, method of electroless plating and polymer article made by electroless plating
  • Polymer composition for use in electroless plating, method of electroless plating and polymer article made by electroless plating
  • Polymer composition for use in electroless plating, method of electroless plating and polymer article made by electroless plating

Examples

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preparation example Construction

[0023] In the preparation of graft copolymers, a polymer backbone (eg, derived from conjugated diene monomers and optional monovinyl aromatic comonomers and / or acrylic comonomers) may account for the graft copolymer combination at least 15 wt % or at least 20 wt %, at most 65 wt % or at most 60 wt % or at most 50 wt % of the total weight of the object. For example, the graft copolymer composition may comprise 15 to 65 wt %, or 15 to 60 wt %, or 15 to 50 wt %, or 20 to 65 wt %, or 20 to 20 wt %, based on the total weight of the graft copolymer composition. 60% or 20 to 50% by weight of the polymer backbone derived from conjugated diene monomers. The monomers polymerized in the presence of the polymer backbone exemplified by styrene and acrylonitrile may comprise from 35 wt% or 40 wt% or 50 wt% to 85 wt% or to 80% by weight. For example, the graft copolymer composition may comprise 35 to 85 weight percent or 40 to 90 weight percent of one or more comonomers selected from monov...

Embodiment

[0099] The following materials were used in the examples:

[0100] Styrene / Acrylonitrile (SAN): 72 wt% styrene / 28 wt% acrylonitrile, weight average molecular weight M w 150,000 g / mol, number average molecular weight Mn 70,000 g / mol. Available from Galata Chemicals as Blendex TM 576 commercially available.

[0101] • Acrylonitrile / butadiene / styrene (ABS) grafted rubber composition: 21 parts acrylonitrile, 31 parts butadiene, 46 parts styrene, 2 parts methyl methacrylate. The ABS rubber contained insoluble grafted rubber fractions and ungrafted rigid SAN fractions, grafted SAN / rubber = 52 wt% of the grafted rubber composition. The ungrafted (rigid extractable) SAN accounted for 48% by weight of the ABS grafted rubber composition and had a weight average molecular weight (Mw) = 120,000 g / mol and a number average molecular weight (Mn) = 35,000 g / mol. Mw and Mn were determined by GPC using polystyrene standards. The rubber particle size was 300 nm with a broad particle size ...

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PUM

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Abstract

A composition for electroless plating comprising: 9 to 29% by weight, 9.7 to 29% by weight, or 10 to 29% by weight of a first grafted rubber copolymer comprising, in polymerized form, at least one conjugated diene monomer and at least one monovinylaromatic monomer; 70 to 90% by weight, preferably 70 to 89.7% by weight, more preferably 70 to 85% by weight of an ungrafted styrenic polymer; 0.1 to 10 wt% of a diene-based core / shell rubber having a particle size of 100 to 500 nanometers (nm); one or more of a stabilizer and / or an antioxidant in a total amount of 0.1 to 5 wt%; a fatty acid or a salt of a fatty acid in an amount of 0.1 to 2 wt%; 0 to 5 wt% of a release agent; 0 to 1 wt% of a metal oxide; 0 to 3% by weight of a lubricant; and 0 to 20% by weight of a polycarbonate; wherein wt% and ppm are based on the total weight of the composition. The composition may be shaped as an article having a metal coating electroless plated on the composition.

Description

[0001] Background of the Invention [0002] Metal plating of plastic products is used in various fields. For example, electroless plating has been used in the electronics field to form conductive plated through holes in printed circuit boards. As another example, chrome plating of polymer parts is used in the automotive industry to make various automotive parts. In certain applications, the finished article is subjected to a wide temperature range during use, during which time the coating must maintain good adhesion to the substrate. For example, when metallized polymer automotive parts can be exposed to temperatures well below 0°C and well above 90°C. [0003] One challenge facing current electroless plating is to obtain articles with proper adhesion between the metal coating and the polymer substrate, even after repeated severe temperature cycling. In addition, another challenge facing current electroless plating is to provide a reasonably wide processing window that allows...

Claims

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Application Information

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IPC IPC(8): C08L55/02C08L25/12C08L83/04C08L51/04C08K5/20C08K5/098C08K3/04C23C18/20C25D5/56
CPCC08L25/12C08L55/02C23C18/2066C25D5/56C08L83/04C08K5/20C08K5/098C08K3/04C08L51/04C08L2205/03H05K3/387H05K2201/0133H05K2201/068C08K2003/222C08K2003/2206C08K2003/2296C23C18/24C23C18/2086C23C18/30C23C18/32C23C18/38C23C18/1653C08K5/09C08K5/005C08L69/00C08K5/10C08K3/013C08K3/22B29C45/0001C08K2201/005C08K2201/012C08L2205/035C08L2207/53C23C18/16
Inventor 万晨S·泰勒周兵J·埃希纳尔R·R·加卢奇徐建华
Owner SABIC GLOBAL TECH BV
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