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Method of making plastic article

A technology for plastic products and products, applied in dyeing methods, textile and papermaking, bulk chemical production, etc., which can solve problems such as increasing the complexity and cost of lens manufacturing methods

Inactive Publication Date: 2017-05-10
SABIC GLOBAL TECH BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Photochromic polycarbonate eyeglass lenses are typically manufactured by incorporating scratch-resistant photochromic composite layers onto the polycarbonate lens surface, adding complexity and expense to the lens manufacturing process.

Method used

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  • Method of making plastic article
  • Method of making plastic article
  • Method of making plastic article

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0116] Some embodiments of the method of making a plastic article and the plastic article made therefrom as disclosed herein are set forth below.

Embodiment approach 1

[0117] Embodiment 1: A method of manufacturing plastic products, comprising:

[0118] A plastic article is formed from a thermoplastic composition comprising a first polymer component comprising: (i) a poly(siloxane-carbonate) copolymer, (ii) a poly(siloxane-carbonate) copolymer comprising soft block ester units (aliphatic ester)-polycarbonates derived from 6-20 Monomers of aliphatic dicarboxylic acids or derivatives thereof, dihydroxyaromatic compounds and carbonate sources, (iii) blends of polycarbonates and polyesters, (iv) thermoplastic polyurethanes, or mixtures comprising any of the foregoing and contacting the surface of the article comprising the thermoplastic composition with a supercritical fluid carbon dioxide comprising an additive dissolved or dispersed therein.

Embodiment approach 2

[0119] Embodiment 2: The method of Embodiment 1, wherein the first polymer component comprises a poly(siloxane-carbonate) copolymer.

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Abstract

A method of making a plastic article is disclosed. According to this method, a plastic article is formed from a thermoplastic composition that includes a first polymer component that is (i) a poly(siloxane-carbonate) copolymer, (ii) a poly(aliphatic ester)-polycarbonate having soft block ester units, derived from monomers including an alpha, omega C6-20 aliphatic dicarboxylic acid or derivative thereof, a dihydroxyaromatic compound, and a carbonate source, (iii) a thermoplastic polyurethane, (iv) a thermoplastic polyurethane, or a combination comprising any of the foregoing. An additive such as a photochromic dye is then loaded into the plastic article by contacting a surface of the article with supercritical fluid carbon dioxide comprising the additive dissolved or dispersed therein.

Description

Background technique [0001] The present disclosure relates to additive-containing plastic articles. [0002] Thermoplastic compositions are useful in the manufacture of articles and assemblies for a wide variety of applications, from automotive parts to electronic equipment. Because of their wide variety of uses, it is often desirable to include additives in plastic articles to impart any of a variety of properties or characteristics to thermoplastic materials. Such additives may include colorants such as photochromic dyes, UV absorbers, light stabilizers, heat stabilizers, antistatic agents, antioxidants, flame retardants and / or antimicrobial agents, among others. Typically, these and other additives can be introduced by compounding into the thermoplastic melt such as during extrusion or molding. However, not all additives have proven to be melt compatible with the incorporated thermoplastic. For example, some additives cannot withstand melt processing temperatures which c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/02C08L69/00C08L83/10C08L75/04C08G77/448
CPCC08G77/448C08J7/02C08J2369/00C08J2375/04C08J2383/10C08L69/00C08L69/005C08L75/04C08L83/10C08L2201/08D06P1/94D06P3/34Y02P20/54C08K5/0041
Inventor 科内利斯·约翰内斯·赫拉尔杜斯·马里亚·范佩尔迪尔克·阿尔特·诺登赫拉夫
Owner SABIC GLOBAL TECH BV