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Alpha-methylene lactone homopolymer and copolymer compositions sheets and articles articles therefrom and the process for their manufacture

A technology of methylene lactone and composition, which is applied to the composition of α-methylene-lactone homopolymer and copolymer, the boards and products manufactured therefrom and the field of production thereof, can solve the problem of harming the environment, etc. question

Inactive Publication Date: 2004-03-24
EI DU PONT DE NEMOURS & CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Monomer volatility during the manufacture of such filled plastic articles such as decorative surfaces can be hazardous to the environment

Method used

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  • Alpha-methylene lactone homopolymer and copolymer compositions sheets and articles articles therefrom and the process for their manufacture
  • Alpha-methylene lactone homopolymer and copolymer compositions sheets and articles articles therefrom and the process for their manufacture
  • Alpha-methylene lactone homopolymer and copolymer compositions sheets and articles articles therefrom and the process for their manufacture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 3

[0113] Table 3 in Example 3 gives the experimentally determined modulus of elasticity. It has been found that the modulus of elasticity improves with increasing α-methylene-lactone content.

[0114] The filled polymer compositions described herein have a better refractive index match between the polymer and the filler because poly(MBL) has a higher refractive index compared to PMMA. This can produce materials with greater transparency.

[0115] All compositions herein may additionally comprise other materials commonly found in thermoplastic compositions, such as dyes, pigments, UV stabilizers, processing aids, flame retardants, antioxidants and antiozonants. These materials are present in conventional amounts, the amount added varying according to the type of material being added and the purpose for which it is being added.

[0116] It has been found that incorporation of the compositions of the present invention into solid surface materials results in the presence of antimi...

Embodiment 1-3

[0144] Preparation of Filled Plates Containing α-Methylene-g-Butyrolactone (Heat Curing)

[0145] In a reactor, three polymer slurries of a 10% by weight solution of poly(methyl methacrylate-ethyl acrylate) (96 / 4 by weight) in a MBL / MMA mixture were passed through slowly dissolving the polymers in a single Prepared in vivo. In the 100% MBL mix, during the degassing step, no acrylic smell was detected nor was there any foam or air bubbles. These pastes were used to make filled acrylic panels as described in Experiment 1. The plates were the same color as the plates in Experiment 1.

[0146] sample

[0147] nature

[0148] thermal properties

[0149] Tα is the highest relaxation temperature corresponding to the glass transition, Tβ and Tβ' are the adjacent lowest relaxation temperatures, which are thought to be the result of the movement of the lactone ring, and Tγ is the lowest measured relaxation temperature, which is thought to be -CH 3 resu...

Embodiment 4

[0151] Prepare filled plates containing methylene butyrolactone (chemically cured, 10 wt.

[0152] %MBL)

[0153] The following ingredients were added sequentially to a 2000 mL reactor equipped with a thermometer, air driven stirrer, rubber septum and reflux condenser:

[0154] tert-butylperoxymaleic acid 9.81g

[0155] Pearl gray pigment paste 0.91g

[0156] Dioctyl sodium sulfosuccinate 3.92g

[0157] Trimethylolpropane trimethacrylate 6.54g

[0158] MMA 56.22g

[0159] α-MBL 52.96g

[0160] 24% polymethylmethacrylate solution in MMA 544.6g

[0161] After mixing the ingredients for 1 minute at room temperature, 1020 g of ATH were added in portions over 2 minutes, followed by stirring for 10 minutes.

[0162] About 5.0 g of MMA was added. With stirring, the mixture was evacuated at 10 KPa. Vacuum down to 20KPa with stirring, then slowly heat to 40°C in a water bath. Rapidly inject the following ingredients in sequence:

[0163] Deionized water 2.04g

[0164] S...

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Abstract

Compositions are described comprising homopolymers or copolymers and inorganic materials such as alumina trihydrate, wherein the homopolymers or copolymers comprise The repeating unit of a lactone. Decorative panels and articles made from these compositions can have higher heat resistance, higher hardness, higher mar and mar resistance, faster polymerization rate, antimicrobial properties, lower thermal expansion One or more of coefficient and higher transparency due to higher refractive index.

Description

technical field [0001] Alumina trihydrate filled polymer compositions are described, and more particularly, aesthetically pleasing polymer articles, such as those made from α-methylene-lactone (lactam) homopolymers or copolymers and alkanes Decorative surface materials made of acrylate monomers. technical background [0002] Filled plastics and their various methods of preparation constitute a well-developed technology. In particular, articles formed from these filled plastics by injection molding and subsequent crosslinking of the polymer matrix include a large number of commercially available products. Typically, the prepared articles comprise a thermoplastic or thermosetting polymer matrix and inert fillers such as calcium carbonate, calcium sulfate, calcium silicate, silica, clay, calcined alumina, alumina trihydrate, spheres, talc, kaolin, feldspar , barite, mica, calcium sulfate, hollow glass spheres, ceramic materials, carbon black or carbon fibers. Other fillers i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F292/00C08F24/00C08F26/00C08F26/06C08F283/02C08K3/22
CPCC08K3/22C08F24/00C08F26/06C08F283/02C08F26/00C08K2003/2227C08L67/04C08F20/00
Inventor C·布兰登博格E·P·布特勒C·埃尔肯布雷彻尔R·金C·胡特钦斯R·D·普茨
Owner EI DU PONT DE NEMOURS & CO
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