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Rigid polyvinyl chloride polymer compositions having improved impact properties

A technology of rigid polyvinyl chloride and polyvinyl chloride, which is applied in the field of rigid polyvinyl chloride polymer compositions, and can solve the problems of not being used and the influence of PVC tensile strength, etc.

Inactive Publication Date: 2009-05-20
EASTMAN CHEM CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Conventional plasticizers are typically not used in applications requiring stiffness because of the adverse effect on the tensile strength of PVC when used in conventional plasticizer amounts

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0042] Eastman TXIB was added to the rigid PVC formulation at levels of 0.2, 0.6, 0.8, 1.0, 2.0, 5.0 and 8.0 phr (parts per hundred resin). Control samples used for this evaluation included a sample with no impact modifier (C1 ) and a sample with 5 phr of Rohm & Haas, Paraloid KM-334 acrylic impact modifier (C2). The formulations were prepared by adding all of the ingredients shown in Table 1 (excluding the acrylic impact modifier or TXIB) to a Thyssen Henschel FM10US type mixer at room temperature. This recipe can also be scaled up to 200 g depending on the desired amount of end product.

[0043] Table 1: High pressure PVC pipe formulation

[0044] Composition PHR (parts / 100 parts resin)

[0045] Gcon103 resin 100

[0046] Advastab TM-387 stabilizer 0.3

[0047] KM-334 Acrylic Impact Modifier 0, 5.0

[0048] TXIB formulation additives 0.2, 0.6, 0.8, 1.0, 2.0, 5.0, 8.0

[0049] Omyalite 90T Calcium Carbonate 2.5

[0050] Titanium dioxide 2.0

[0051] Calcium stearate 0...

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PUM

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Abstract

Rigid polyvinyl chloride compositions are disclosed that are suitable for use in applications such as window profiles, door frames, siding, fences, gutters, pipes, electrical junction boxes, automobile interiors and exteriors, appliances, office equipment or medical devices. The disclosed compositions include polyvinyl chloride polymers or copolymers having incorporated therein 2,2,4-trimethyl-1,3-pentanediol diisobutyrate in amounts so as to improve the impact properties of the compositions. Processes for making such compositions are also disclosed.

Description

field of invention [0001] The present invention relates to rigid polyvinyl chloride polymer compositions having enhanced impact properties making them suitable for use in a variety of end-use applications. The composition comprises 2,2,4-trimethyl-1,3-pentanediol diisobutyrate as an impact modifier in an amount sufficient to enhance the impact properties of the composition. Background of the invention [0002] Polyvinyl chloride polymer and copolymer compositions (hereinafter "PVC") are useful in a variety of applications, including medical, electrical, automotive and building, and construction. For example, PVC is used in the following products: appliances, furniture, window frames, drainage pipes, medical devices, power supplies, data and communication wiring and cables, insulated cables, resilient floors, roof membranes, automotive interiors and seat covers, Automotive exteriors and parts, apparel and footwear, bottles and packaging, credit cards and synthetic leather an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K5/103C08L27/06
CPCC08L55/00C08K5/103C08L27/06C08L2666/24
Inventor R·L·怀特森S·L·戈特
Owner EASTMAN CHEM CO