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Polyester plasticizers with benzoic acid end-caps

A technology of benzoate and polydibenzoate, applied in the field of polyester plasticizer, can solve the problems of incompatibility and limitation of application polymers

Active Publication Date: 2016-08-17
EMERALD KALAMA CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Depending on the application, their use may be limited due to incompatibility with polymers

Method used

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  • Polyester plasticizers with benzoic acid end-caps
  • Polyester plasticizers with benzoic acid end-caps
  • Polyester plasticizers with benzoic acid end-caps

Examples

Experimental program
Comparison scheme
Effect test

example

[0109] Polyester plasticizers of the present invention evaluated in the Examples include:

[0110] X-121 - Polyester plasticizer of the invention comprising propylene adipate with benzoate endcapping

[0111] X-124 - Polyester plasticizer of the invention comprising propylene adipate with benzoate end capping (higher molecular weight than X-121)

[0112] X-151 - Polyester plasticizer of the invention comprising propylene glycol succinate with benzoate endcapping

[0113] X-131 - Inventive polyester plasticizer comprising propylene adipate with mixed benzoate and acetate endcaps

[0114] Traditional plasticizers used for comparison in the examples include:

[0115] Diisononyl Phthalate (DINP)

[0116] Dioctyl terephthalate (DOTP)

[0117] Benzylisononyl phthalate (INBP)

[0118] Trimethyl-1-3-phthalate benzyl pentylene glycol monoisobutyrate (benzyl 3-isobutyryloxy-1-isopropyl-2,2-phthalate dimethyl benzyl 3-isobutyryloxy-1-isopropyl-2,2-dimethylpropyl phthalate or TBP) –...

example 1

[0121] Example 1: 2K polysulfide insulating glass sealant / B side evaluation

[0122] The formula and method of the sealant that this example adopts are as follows:

[0123] A side formula

[0124] ingredient type

PHR

liquid polysulfide polymer

100

INBP

35

coupling agent

1.2

ground calcium carbonate

155

Precipitated calcium carbonate

32

stearic acid

1.6

[0125] Side B formula

[0126] ingredient type

number of copies

Plasticizer

155

Hardener

101

carbon black

33

Accelerator

6

[0127] Table 1 - Methods

[0128]

[0129] The oligomeric dibenzoates of the present invention (X-121 and X-124) of different molecular weights based on propylene glycol oxalate were combined with conventional high molecular weight Benzyl phthalate (TBP) plasticizers were compared. The plasticizer of the present invention is contained on the B side of the encapsu...

example 2

[0140] Example 2 - Propylene Glycol / Succinate Polyester with Dibenzoate Endcapping in Plastisol

[0141] Additional methods for plastisol evaluation:

[0142] Viscosity and Rheology: Low Shear – Brookfield Viscosity, 20RPM, 10 rpm reading. ASTM D1823. High Shear – TAAR2000ex was used. The parallel plates are set with a suitable gap. Cut to 1000sec -1 .

[0143] Gel / Fusion: TA AR2000ex is in shaking mode. The parallel plates are set with a suitable gap. The test starts at 40°C and heats up to 220°C at a rate of 5°C / min.

[0144] Compatibility of plasticizers with polymers: tumbling and cycling experiments, as in Table 1 above.

[0145] Effectiveness - Shore A - ASTM D2240; Tensile Strength - ASTM D638, Type IV die, 50.8 cm / minute pull rate.

[0146] Raw materials for plastisol evaluation:

[0147] Geon TM 121-A - PVC homopolymer available from PolyOne Corporation.

[0148] KRONOS TiO 2 - Titanium dioxide from Kronos, Inc.

[0149] 1221 - Ca / Zn stabilizer from Gal...

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Abstract

Polyester plasticizer compositions for adhesives, caulk, sealants, vinyl and other polymeric compositions comprising low molecular weight oligomeric dibenzoates prepared by end-capping a polyester plasticizer, having alternating units of glycols or diols and dibasic acids, with benzoic acid. Methods for preparing oligomeric dibenzoates include steps to reduce or eliminate residual hydroxyl content and improve plasticizer performance by adding acetic anhydride are also disclosed. Propylene glycol adipate and propylene glycol succinate polyesters with benzoic acid end-caps are particularly useful, as are hybrid benzoate / acetate end-capped polyesters formed in the process with acetic anhydride. The invention further relates to vinyl resin compositions comprising the oligomeric end-capped polyesters.

Description

technical field [0001] The present invention relates to a novel plasticizer composition for use in a variety of polymer dispersions including, but not limited to, caulks, sealants, adhesives, and vinyls. In particular, the present invention relates to polyester plasticizers comprising alternating units of glycols and dibasic acids and capped with benzoate and / or acetate esters . The invention also relates to compositions comprising the novel plasticizer ingredient. Background technique [0002] Polyester plasticizers are generally classified as specialty plasticizers and include a wide variety of chemicals. Polymeric polyester plasticizers are prepared by esterifying polyhydric alcohols (diols) with dibasic acids, usually adipic acid, in the presence of monobasic acids or alcohols. These polymeric polyesters contain regularly alternating (repeating) units of dibasic acids and diols (or diols) in contrast to monomeric plasticizers which do not contain repeating units. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/20C08L81/04C08L67/02C08L27/06C08L23/30C09J129/04C09J167/02C09J11/08
CPCC08K5/0016C07C67/08C07C69/78C08G63/12C08G63/20C09J7/245C09K3/1012C08L27/06C08J5/18C08K5/11C09J11/08C08L101/02C09J2301/41C09J2301/302C09J11/06C09J2203/334C09J2427/006
Inventor 威廉姆.D.阿伦特艾黙莉.麦克布莱德斯蒂文.D.罗斯艾瑞克.哈彻
Owner EMERALD KALAMA CHEM
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