JPS60112850A - Thermoplastic polyester composition - Google Patents

Abstract

PURPOSE:To obtain titled composition of improved impact, heat, and hydrolysis resistance and weatherability, by incorporating specific olefin copolymer in polyethylene-1,2-bis(2-chlorophenoxy)ethane-4,4'-dicarboxylate. CONSTITUTION:The objective composition can be obtained by incorporating (A) 100pts.wt. of polyethylene-1,2-bis(2-chlorophenoxy)ethane-4,4'-dicarboxylate with (B) 0.5-30 (pref. 2-15)pts.wt. of an olefin polymer consisting of (i) alpha-olefin (e.g. ethylene) and (ii) 1-50 (pref. 1-20)wt% of alpha,beta-unsaturated acid glycidyl ester of formula (R is H or lower alkyl) (e.g. glycidyl methacrylate). Further incorporation of 1-15pts.wt. of either a copolymer made up of ethylene and >=3C alpha-olefin or terpolymer consisting of said two monomers and non-conjugated diene would be more effective.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention improves mechanical properties such as resistance (5j'! γ141 and bending elasticity tel), heat resistance, surface weatherability, and external appearance. The present invention relates to a heat-resistant polyester composition.

Polyethylene terephthalate 1~ has traditionally been 1illi
1414.

It is used in various fields such as various molded products, but it has advantages such as a higher secondary transition point and melting point compared to the same thermoplastic polyester, Polyphthyleneterefukle-1. On the other hand, due to the slow crystallization rate, there is a problem that, for example, when applied to injection molding, the molding cycle is long, making it impossible to obtain a molded product with sufficient crystallization and good appearance.

Known as flame-retardant polyester (Special Publication No. 1986-17!)
] 5 Polyethylene-1,2-His (
2-Chlorphenokino) ethano-4,4'-7 carboxyl-1, or polyethylene terephthalate, it solves the problems and has excellent moldability, high heat resistance, high heat resistance, and hydrolysis resistance. The inventors found that this material has mechanical properties. However, it has been found that this polyester has the disadvantage of poor resistance to Itj impact (141) and weather resistance (13+).

Therefore, the inventors conducted intensive research to improve these drawbacks and developed polyethylene-1,2-hys(2
By forming a composition of -chlorophenoquino)ethane-4,4'-lecarboxyl-1- with a specific copolymer, it has not only impact resistance and weather resistance of T4, but also heat resistance and hydrolysis resistance of 10.
It was discovered that the properties of the two species are also similar, leading to the present invention.

That is, Invention A is based on hepolyethylene-1,2-bis(2
-Chlorphenoquine) Fnor 4.4'-Dicarboxyl-1.100 polymer and CBlσ-Olefin and σ,β-
Secondary fin type J consisting of glycidyl ester of unsaturated acid
The present invention provides a thermal 1iJ plastic 11 polyester composition comprising 05 to 30 parts by weight of 1 polymer.

In addition, polyethylene-1,2-his (
2-10 rufenoquine) efnor 4.4'-one carboxylate may be combined with small amounts of other copolymer components such as 1-(
2-chlorophenoquino)-2,-(phenoquino)ethane-4,4'-recarfonic acid, I+2-his(2,ly-
;chlorphenoquine)ethane-4,4'-lecarbonoic acid, 1,2-his(2-protophenoquine)elan-4,
4'-Lecarbonoic acid, 4.4'-diphenyldicarboxylic acid, terephthalic acid, inophthalic acid, hex→nohydroterephthalic acid, 112-his(4-carboxyphenoxy)
Ethane, 3.3'-diphenyldicarboxylic acid, 3.4'
-Diphenyldicarboxylic acid, z, z'-*Acid component of phenyldicarboxylic acid and 1. Other glycol components such as 4-butanediol, A, A pentyl glycol, diethylene glycol, 2,2-his(4-β-hydroquinoethoquinophenyl sulfone) and 41-J ethylene-1.2-
A small amount (20% by weight or less, preferably 10% by weight or less) of His (2-chlorophenoquino)ethane-4,4'-onecarboxyl-1.
l, 1 [can be included as a gold component, but 1-
(2-chlorphenokino”l-2-(phenokino)-
Tsuno-4,4'-lecarponoic acid is most preferred.

The σ-'Al/fins in the lefin-based copolymer used in the present invention are ethylene, propyleno, buteno-1, etc.; is preferably used. Glycidyl ester of α,β-unsaturated acid is a compound represented by the general formula (wherein R is hydrogen 11; Examples include glycidyl acrylate, glycidyl meccrylate, glycidyl ethacrylate, and glycidyl meccrylate is preferably used. :(1, β in A1 nofin copolymer
- The approximate total amount of crinonyl esters of unsaturated acids is 1 to 50
A suitable range is 1 to 20% by weight, more preferably 1 to 20% by weight. In addition, if it is less than 40% by weight, the amount of unsaturated monomers that can be combined with the polymer, such as vinyl ethers, acid-resistant vinyl, vinyl propionate, etc., esters, methyl, Acrylic acid and methacrylic acid diesters such as ethyl and propyl, acrylonitrile, styrene, and carbon oxide may be copolymerized.

Preferred examples of the olefin copolymer consisting of α-A lefin and glycidyl ester of σ,β-unsaturated acid include ethylene/grinol methacrylate copolymer, ethylene/vinyl acetate/grinol methacrylate copolymer, j
Examples include tyreno/-carbon oxide/grillyl methacrylate copolymer, ethylene/grillyl acrylate copolymer, ethylene/grillyl acrylate/vinyl acetate copolymer, and ethylene/grillyl methacrylate monopolymer is the most active. ? It is most preferable in terms of I la and the like.

11. Melefino-based J1, the blending amount of the polymer is 05 to 30 parts by weight, especially 2 to 15 parts by weight, based on 100 parts by weight of the copolymerized polyester. In terms of FlI and weather resistance V1, only sufficient molded products can be obtained, and when the amount exceeds 1 to 30, the tensile strength of the molded product decreases, which is not preferable.

``Ethylene and 3 carbon atoms together with olefin copolymer
The effects of A and the invention can be further enhanced by using a polymer or a terpolymer consisting of ethylene, an α-olefin with 3 or more carbon atoms, and a non-conjugated gene. 1CJlj polymers include, for example, ethylene/propyleno (polymer, ethylene copolymer, theno-1, <4', ethylene/propylene/1,4-hex→noneno-1:41 polymer, ethylene/propylene/dino), Clobenotadienoi (polymer,
Ethylene/propyleno-15-ethylidene-2-norborneno-11 polymer, etc., and the amount added is preferably 1 to 15 parts by weight.

There is no particular restriction on the method of blending the above-mentioned copolyester and olefin copolymer, and for example, both may be premixed, and then separately fed to an extruder and melt-mixed.
Laws etc. can be adopted.

When mixing the copolymerized polyester and the olefin copolymer, ordinary plastic additives such as knitted reinforcing agents such as crow braided cord and asbestos fibers, fillers such as glass powder and glass beads, etc. Crystallization accelerators, preforming agents, hinocudophenol compounds, stabilizers such as organic bosphite, flame retardants such as hexabrombenozene, decabrom diphenyl, decabrom> phenyl ether, antimono trioxide, brominated polystyrene, Pigments such as titanium oxide, dyes, etc. can be added in the required amount. It is also possible to add at least one of other thermoplastic resins, thermosetting resins, and soft thermoplastic resins.

In particular, when blending IaM-type reinforcing agents and fillers such as glass fibers into Yuki polymerized polyester, the additives are bulky and have poor affinity with the polymer, so it is difficult to feed them into the extruder. Although the embedding properties and melt extrusion stability are poor, the extrusion stability is improved by incorporating the olefin copolymer, and a favorable effect of achieving a good yield of katI can be obtained.

The thermoplastic polyester composition of the present invention can be prepared by a conventional molding method.
For example, it can be applied to injection molding, extrusion molding, blow molding, compression molding, etc. In particular, molded products obtained by injection molding have mechanical properties such as impact resistance and flexural modulus, and heat distortion temperature. It has well-balanced thermal properties and appearance, making it useful for a variety of applications, including resins and fibers. Mulberry is also useful as a film.

The present invention will be further explained below with reference to Examples.

Note that the number of copies in the examples indicates the number of weights.

Example 1 Polyethylene-1,2-His (2/7
0 Rufuenokino) Ethano-4+4'-Cicalbokino17
-1.100 parts of ethylene/glycyl methacrylate (90/10 weight ratio) copolymer.
The mixture was dry pelleted to the proportions shown in Table 1, melt-mixed using an extruder, and the -C mixture was extruded in cut shapes, cooled, and then pelletized using a S-I rad cutter.

Next, set 1/5 to 300"C for each pellet 4/290.
'Submitted to Ance's screw Inorhino type injection cedar machine,
Mold d1, Eye j throat impact test J'1 under the condition of 1 degree 140℃, tensile impact test piece (1/16'' thickness) dumbbell test piece (1/16'' thickness) and test for measuring heat distortion temperature A piece (1/8' thick) was molded.

For each test 11 obtained, J
・Perform the V value.

Aijino 1-Sei j11) Kanto eeeAsTM 1)-
256 Tensile Impact Strength...ASTM D-1822 Tensile Strength...ASTM D-638 From Table 1, the examples of the present invention have high diameter j11$ strength and tensile strength, and have good weather resistance and heat resistance. It costs.

On the other hand, in the comparative example, ethylene/glynomethacrylate/1Iivinyl monoacetate J (when the amount of polymer blended is small, the strength is 417, It can be seen that both weather resistance and heat resistance are insufficient.When the blending amount of ethylene/methacrylate linosyl (polymer) is too large, It can be seen that the tensile strength is low.

The properties of the comparative polybutylene foam clay-1 are described, and it can be seen that the physical properties of the comparative composition are poorer than those of the composition of the present invention.

Claims (1)

[Claims] Hefolienareno-1,2-his(2-chlorophenoquino)ethane-4,4'-lecarboxylate-1.1,00 small parts and (1) 1-olefino and a,β-unsaturated acid. Olefino-based intermediate coalescence consisting of crinone ester 05~
A heat ++ J plastic polyester composition consisting of 30 layers.