CN106854272A - Continous way antiskid chain transparent polyurethane elastomer and preparation method thereof - Google Patents
Continous way antiskid chain transparent polyurethane elastomer and preparation method thereof Download PDFInfo
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- CN106854272A CN106854272A CN201611257915.6A CN201611257915A CN106854272A CN 106854272 A CN106854272 A CN 106854272A CN 201611257915 A CN201611257915 A CN 201611257915A CN 106854272 A CN106854272 A CN 106854272A
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- polyurethane elastomer
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
- C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
- C08G18/7671—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups containing only one alkylene bisphenyl group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/0895—Manufacture of polymers by continuous processes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4236—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups
- C08G18/4238—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups derived from dicarboxylic acids and dialcohols
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6633—Compounds of group C08G18/42
- C08G18/6637—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/664—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The present invention relates to a kind of continous way antiskid chain transparent polyurethane elastomer and preparation method thereof, belong to polyurethane applied technical field.Continous way antiskid chain transparent polyurethane elastomer of the present invention, is made up of component A, B component and component C, and the quality accounting of three kinds of components is respectively 61 65%, 27 30%, 6.4 9.9%, wherein：(1) component A includes polyalcohol, antioxidant, separating powder, ultra-violet absorber and catalyst；(2) B component is isocyanates；(3) component C is chain extender.Continous way antiskid chain transparent polyurethane elastomer of the present invention, with excellent properties such as excellent wear-resisting, low temperature resistant, high intensity, high elongation rates, transparency is high, attractive in appearance, is particularly well-suited to kart；Described preparation method is simple and easy to apply, using continous way method, compared with batch process, and good stability between easy to operate in process of production, batch.
Description
Technical field
The present invention relates to a kind of continous way antiskid chain transparent polyurethane elastomer and preparation method thereof, belonging to polyurethane should
Use technical field.
Background technology
Automobile anti-skid chain is to aim at ride safety of automobile and designs the automotive safety articles for use for using, special using nonskid chain
Rough surface make its increase and the frictional force on road surface, play protection tire, prevent tyre slip, ensure normal vehicle operation
Effect.In addition to playing important safety effect in muddy road, snowmobile traveling, driven in skiing, ground observation, high mountain
To sail etc. and play irreplaceable effect in vehicle drive under various mal-conditions.
Iron antiskid chain installs the dual infringement of poor inconvenient, heavy, attractive in appearance and comfortableness, road pavement and tire because carrying
Big the problems such as, it is difficult to meet car market, and wear-resisting, the low temperature resistant, height that TPUE antiskid chain has
The excellent properties such as intensity, high elongation rate are especially suitable for small size gasoline anti-slip chain for vehicle.
There are many researchs in terms of automobile anti-skid chain the current country, is concentrated mainly on anti-skidding Similarity Between Line Segments, appearance design
Aspect.Sucker is furnished with rubber or shoe with beef tendon sole as the automobile tire chain for frozen pavement of patent 201310390903.0 is taken, is solved
The problem that automobile drives safely in sleet, ice face.The belt-shaped antiskid chain for automobile tire of patent 201110095577.1 devises one
Money flexibility is good, bending is convenient, lightweight, install fixed easy, excellent in cushion effect, long service life, good antiskid effect etc.
The antiskid chain of advantage.And a kind of automobile anti-skid chain dedicated transparent TPU of patent 201310496488.7 and preparation method thereof be from
Raw material selection, preparation aspect are prepared for a transparent TPU automobile anti-skid chain by batch process.The He of patent 201310390903.0
201110095577.1 mainly are designed to increase its skidproof effect, security performance in terms of antiskid chain outward appearance.Patent
The 201310496488.7 excellent properties invention polyurethane elastomer antiskid chains that make use of polyurethane elastomer, but the patent takes
Be that batch process prepares antiskid chain polyurethane elastomer, the method has that production operation is discontinuous, stability is poor between batch, give birth to
Production capacity consumes high weak point.
The content of the invention
It is an object of the invention to provide a kind of continous way antiskid chain transparent polyurethane elastomer, it has excellent resistance to
The excellent properties such as mill, low temperature resistant, high intensity, high elongation rate, transparency is high, attractive in appearance, is particularly well-suited to kart；Described system
Preparation Method is simple and easy to apply, steady between easy to operate in process of production, batch compared with batch process using continous way method
It is qualitative good.
Continous way antiskid chain transparent polyurethane elastomer of the present invention, is made up of component A, B component and component C,
The quality accounting of three kinds of components is respectively 61-65%, 27-30%, 6.4-9.9%, wherein：
(1) component A includes polyalcohol, antioxidant, separating powder, ultra-violet absorber and catalyst；
(2) B component is isocyanates；
(3) component C is chain extender；
The polyalcohol is birdsed of the same feather flock together ester polyol for adipic acid.Polyalcohol preferably by adipic acid and ethylene glycol, 1,4- butanediols,
Ethylene glycol is obtained with the mixture of 1,4- butanediols with the mixture or ethylene glycol of 1,3- propane diols by polycondensation reaction.It is preferred that
PE-2320, PE-2420, PE-4020 of Shandong Inov Polyurethane Co., Ltd.'s production.
The isocyanate component is 4,4- methyl diphenylene diisocyanates.
The antioxidant is the mixture of Hinered phenols and phosphorous acid esters, and mixing quality ratio is 1：1-2, antioxidant accounts for A
The weight ratio of component is 0.02~0.3：100.
The separating powder is various in soaps, wax class, silicon class or amide-type, and the weight ratio that separating powder accounts for component A is
0.02~0.6：100.
The weight ratio that the ultra-violet absorber accounts for component A is 0.01~0.15：100.
The catalyst is tin class or bismuth class catalyst.Preferably US Air gasification work stannous octoate (Dsbco T-9),
The special dibutyl tin laurate (Kosmos 19) of German Gauss rice, BICAT8108, BICAT8220 of the leading chemistry of Germany.
Described antioxidant, separating powder and PEPA, TPU compatibilities, heat endurance are good, high polymer production, plus
Do not decomposed during work, it is non-volatile, storage does not go out powder, product surface brightness reduction width within 1 year in the product processed
Degree is less than 5%.
The B component is 4,4- methyl diphenylene diisocyanates.
The component C is ethylene glycol, 1,4- butanediols, 1,4- butanediols and 1,3 butylene glycol or 2- methyl isophthalic acids, 3- the third two
The mixture or 1,4- butanediols of alcohol and 1,3 butylene glycol and the mixture of 2- methyl-1,3-propanediols；1,4- butanediols with
The mixing quality ratio of 1,3 butylene glycol or 2- methyl-1,3-propanediols is 100：2-8；1,4- butanediols and 1,3 butylene glycol and 2-
The mixed proportion of methyl-1,3-propanediol is 100：2-8,1,3-BDO and 2- methyl isophthalic acids, the mixing quality ratio of ammediol
It is 2-10:1.It is defined above most important for integral formula for component C, can according to use different component Cs,
Or the product of different outward appearances, performance is produced according to the ratio of limited component C.Mesh is compared according to defined above can producing
Preceding in the market product is more resistant to the good antiskid chain of low temperature, rebound performance.
The preparation method of described continous way antiskid chain transparent polyurethane elastomer, is by polyalcohol, antioxidant, ultraviolet
Light absorbers, separating powder add A material head tanks, open stirring, and control material temperature is at 85-95 DEG C；Isocyanates is added to B material high
Position groove, opens stirring, and control material temperature is at 45-55 DEG C；By chain extender input C material head tanks, stirring is opened, control material temperature is in 45-
55℃；After after each auxiliary agent dissolving in A material, by mass, added with the ratio of polyalcohol/catalyst=100/0.02~0.024
Catalyst, after stirring, squeezes into casting machine by the component of A, B, C tri- from head tank respectively, in the good each group shunting of casting machine page setting
Amount parameter, is 61~65 by A/B/C mass ratioes：27~30：6.4~9.9 pouring head mixing after cast enter twin-screw system,
The particle that reaction is obtained prepares the good ellipticity particle of the transparency by underwater cutpellet, then by particle in 90-100 DEG C of curing
4~6h.
Obtained continous way antiskid chain transparent polyurethane elastomer of the invention, hardness range is shore hardness under normal temperature
83-87A, transparency scope is 190 DEG C, under the conditions of 10 kilograms of counterweights more than 6mm, and the melt index for measuring is 20-50g/
10min。
The present invention is according to a certain percentage stirred after mixing by bottler placer and is expelled to double screw extruder, by same
To the conveying of twin-screw, engagement, constantly there is polymerisation during this, reacted fluid is made by underwater pellet cutting system
Grain and prepare TPU particles, by adjusting PEPA structure and chain extender component, different transparencies, resistance to low can be prepared
The thermoplastic polyurethane antiskid chain of temperature and anti-wear performance.
The present invention takes continous way to prepare between antiskid chain polyurethane elastomer, easy to operate in process of production, batch
Good stability, energy consumption are low, environment-friendly；And the change for passing through formula system, can produce for different regions temperature requirement
The different antiskid chain polyurethane elastomer of lower temperature resistance, wearability is prepared, to meet the practical application of different temperatures requirement.
The invention has the advantages that：
(1) the continous way antiskid chain transparent polyurethane elastomer described in, with excellent wear-resisting, low temperature resistant, high intensity,
The excellent properties such as high elongation rate, have the advantages that it is attractive in appearance, easy to carry, to tire and ground injury it is small, be particularly well-suited to small-sized
Automobile；
(2) the continous way antiskid chain transparent polyurethane elastomer described in, can by change the composition of component C prepare it is resistance to
The different elastomer of the performances such as cryogenic property, transparency, abrasion, to adapt to the different desired antiskid chain elasticity in different regions
Body；
(3) preparation method described in is simple and easy to apply, using continous way method, compared with batch process, in production process
In easy to operate, stay in grade, yield is high, energy consumption is low.
Specific embodiment
With reference to embodiment, the present invention is further illustrated, but it is not intended to limit implementation of the invention.
PEPA PE-2320, PE-2420, PE-4020 in embodiment are that the Nowe polyurethane share of Shandong one is limited
The adipic acid series polyalcohol of company's production, 4,4 '-methyl diphenylene diisocyanate is Yantai Wanhua MDI-100, antioxidant
AO-60 and 628L is the Changjiang river chemistry limited company product, and each trade mark relevant parameter is as follows：
PE-2320：Hydroxyl value is：53.4mg KOH/g, acid number is：0.38mg KOH/g, moisture is 0.024%；
PE-2420：Hydroxyl value is：56.7mg KOH/g, acid number is：0.32mg KOH/g, moisture is 0.021%；
PE-4020：Hydroxyl value is：52.6mg KOH/g, acid number is：0.36mg KOH/g, moisture is 0.027%；
MDI-100：Colourity (APHA)：5,4,4 '-MDI content, % (A/A):98.84, hydrolyzable chloride content, %：0.0006.
AO-60：White powder, fusing point：115 DEG C, molecular weight 1178；
628L：Transparency liquid, viscosity：39cps, molecular weight 628.
Embodiment 1
To sequentially adding polyalcohol PE-2320 in polyester head tank：3000Kg, antioxidant AO-60：5g, 628L：8g is purple
Ultraviolet absorbers：6.5g, soaps separating powder：9g, wax class separating powder：9g, stannous octoate：380g, stirs, to isocyanates
1285Kg methyl diphenylene diisocyanates are added in head tank, 330Kg1 is added to chain extender head tank, 4- butanediols, will be many
First alcohol and other auxiliary agent blending ingredients, methyl diphenylene diisocyanate component and 1,4- butanediols component squeeze into filling from head tank
Three pans of note machine, set the relevant parameters such as each group shunt volume, temperature, flow bound, open twin-screw system, start
Bottler placer perfusion switch, starts production, and the transparent particles that will be produced play test piece, test performance after vulcanizing 5 hours.
Embodiment 2
To sequentially adding polyalcohol PE-2420 in polyester head tank：3000Kg, antioxidant AO-60：3g, 628L：6g is purple
Ultraviolet absorbers：4.5g, silicon class separating powder：10g, amide-type separating powder：14g, stannous octoate：380g, stirs, to isocyanide
In acid esters head tank add 1238Kg methyl diphenylene diisocyanates, to chain extender head tank add 307Kg1,4- butanediols,
Polyalcohol and other auxiliary agent blending ingredients, methyl diphenylene diisocyanate component and 1,4- butanediol components are beaten from head tank
Enter three pans of bottler placer, set the relevant parameters such as each group shunt volume, temperature, flow bound, open twin-screw system,
Start bottler placer perfusion switch, start production, the transparent particles that will be produced play test piece, test performance after vulcanizing 5 hours.
Embodiment 3
To sequentially adding polyalcohol PE-4020 in polyester head tank：3000Kg, antioxidant AO-60：5g, 628L：9g is purple
Ultraviolet absorbers：7.0g, soaps separating powder：9g, wax class separating powder：9g, silicon class separating powder：10g, stannous octoate：375g, stirring
Uniformly, to 1370Kg methyl diphenylene diisocyanates are added in isocyanates head tank, added to chain extender head tank
356Kg1,4- butanediol, by polyalcohol and other auxiliary agent blending ingredients, methyl diphenylene diisocyanate component and ethylene glycol group
Divide and squeeze into three pans of bottler placer from head tank, set the relevant parameters such as each group shunt volume, temperature, flow bound, open
Twin-screw system is opened, starts bottler placer perfusion switch, start production, the transparent particles that will be produced play test piece after vulcanizing 5 hours,
Test performance.
Embodiment 4
To sequentially adding polyalcohol PE-4020 in polyester head tank：3000Kg, antioxidant AO-60：5g, 628L：9g is purple
Ultraviolet absorbers：7.0g, wax class separating powder：5g, silicon class separating powder：23g, stannous octoate：375g, stirs, to isocyanic acid
1370Kg methyl diphenylene diisocyanates are added in ester head tank, 12.25Kg2- methyl isophthalic acids, 3- are added to chain extender head tank
Propane diols, 232.75Kg ethylene glycol, by polyalcohol and other auxiliary agent blending ingredients, methyl diphenylene diisocyanate component and expansion
Chain agent mixing alkoxide component squeezes into three pans of bottler placer from head tank, sets each group shunt volume, temperature, flow bound etc.
Relevant parameter, opens twin-screw system, starts bottler placer perfusion switch, starts production, and the transparent particles vulcanization 5 that will be produced is small
When after play test piece, test performance.
Embodiment 5
To sequentially adding polyalcohol PE-4020 in polyester head tank：3000Kg, antioxidant AO-60：5g, 628L：9g is purple
Ultraviolet absorbers：7.0g, soaps separating powder：4g, wax class separating powder：5g, silicon class separating powder：8g, amide-type separating powder：11g, it is pungent
Sour stannous：375g, stirs, to 1370Kg methyl diphenylene diisocyanates are added in isocyanates head tank, to chain extension
Agent head tank adds 12.25Kg1,3- butanediols, 232.75Kg ethylene glycol, by polyalcohol and other auxiliary agent blending ingredients, hexichol
Dicyclohexylmethane diisocyanate component and chain extender mixing alkoxide component squeeze into three pans of bottler placer from head tank, set each group
The relevant parameters such as shunt volume, temperature, flow bound, open twin-screw system, start bottler placer perfusion switch, start production,
The transparent particles that will be produced play test piece, test performance after vulcanizing 5 hours.
The performance test results of product prepared by the embodiment of table 1
| Embodiment | The test piece transparency/mm | Tensile strength/MPa | Tearing strength/MPa | |
| Embodiment 1 | 7 | 32 | 107 | 77 |
| Embodiment 2 | 7 | 30 | 101 | 82 |
| Embodiment 3 | 6 | 36 | 123 | 63 |
| Embodiment 4 | 8 | 28 | 96 | 87 |
| Embodiment 5 | 8 | 26 | 87 | 94 |
Claims (9)
1. a kind of continous way antiskid chain transparent polyurethane elastomer, it is characterised in that：It is made up of component A, B component and component C,
The quality accounting of three kinds of components is respectively 61-65%, 27-30%, 6.4-9.9%, wherein：
(1) component A includes polyalcohol, antioxidant, separating powder, ultra-violet absorber and catalyst；
(2) B component is isocyanates；
(3) component C is chain extender；
The polyalcohol is by adipic acid and the mixture or ethylene glycol of ethylene glycol, 1,4- butanediols, ethylene glycol and 1,3- propane diols
Mixture with 1,4- butanediols is obtained by polycondensation reaction.
2. continous way antiskid chain transparent polyurethane elastomer according to claim 1, it is characterised in that：Antioxidant be by
The mixture of resistance phenols and phosphorous acid esters, mixing quality ratio is 1：1-2, antioxidant account for the weight ratio of component A for 0.02~
0.3：100.
3. continous way antiskid chain transparent polyurethane elastomer according to claim 1, it is characterised in that：Separating powder is soap
Various in class, wax class, silicon class or amide-type, the weight ratio that separating powder accounts for component A is 0.02~0.6：100.
4. continous way antiskid chain transparent polyurethane elastomer according to claim 1, it is characterised in that：Ultraviolet radiation absorption
The weight ratio that agent accounts for component A is 0.01~0.15：100.
5. continous way antiskid chain transparent polyurethane elastomer according to claim 1, it is characterised in that：Catalyst is tin
Class or bismuth class catalyst.
6. continous way antiskid chain transparent polyurethane elastomer according to claim 1, it is characterised in that：B component is 4,
4- methyl diphenylene diisocyanates.
7. continous way antiskid chain transparent polyurethane elastomer according to claim 1, it is characterised in that：Component C is second
The mixture or 1,4- fourths of glycol, 1,4- butanediols, 1,4- butanediols and 1,3 butylene glycol or 2- methyl-1,3-propanediols
Glycol and 1,3 butylene glycol and the mixture of 2- methyl-1,3-propanediols；1,4- butanediols and 1,3 butylene glycol or 2- methyl isophthalic acids,
The mixing quality ratio of ammediol is 100：2-8；The mixing of 1,4- butanediols and 1,3 butylene glycol and 2- methyl-1,3-propanediols
Ratio is 100：2-8,1,3-BDO and 2- methyl isophthalic acids, the mixing quality ratio of ammediol is 2-10:1.
8. the preparation method of any described continous way antiskid chain transparent polyurethane elastomers of a kind of claim 1-7, it is special
Levy and be：Polyalcohol, antioxidant, ultra-violet absorber, separating powder are added into A material head tanks, stirring is opened, control material temperature exists
85-95℃；Isocyanates is added to B material head tanks, stirring is opened, control material temperature is at 45-55 DEG C；By chain extender input C material
Head tank, opens stirring, and control material temperature is at 45-55 DEG C；After after each auxiliary agent dissolving in A material, catalyst is added, after stirring, respectively
The component of A, B, C tri- is squeezed into casting machine from head tank, is 61~65 by A/B/C mass ratioes：27~30：6.4~9.9 in pouring head
Cast enters twin-screw system after mixing, and the particle that reaction is obtained prepares particle by underwater cutpellet, then by particle in 90-
100 DEG C of 4~6h of curing.
9. the preparation method of continous way antiskid chain transparent polyurethane elastomer according to claim 8, it is characterised in that：
By mass, catalyst is added with the ratio of polyalcohol/catalyst=100/0.02~0.024.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611257915.6A CN106854272A (en) | 2016-12-30 | 2016-12-30 | Continous way antiskid chain transparent polyurethane elastomer and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611257915.6A CN106854272A (en) | 2016-12-30 | 2016-12-30 | Continous way antiskid chain transparent polyurethane elastomer and preparation method thereof |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611257915.6A Pending CN106854272A (en) | 2016-12-30 | 2016-12-30 | Continous way antiskid chain transparent polyurethane elastomer and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111607060A (en) * | 2020-07-13 | 2020-09-01 | 扬州雷应精密科技有限公司 | High-entropy polyurethane and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4161976A (en) * | 1976-07-10 | 1979-07-24 | Firma Carl Freudenberg | Anti skid chain |
| CN101735596A (en) * | 2009-12-15 | 2010-06-16 | 上海联景聚氨酯工业有限公司 | Thermoplastic polyurethane elastomer and manufacturing method thereof |
| CN103897138A (en) * | 2013-10-21 | 2014-07-02 | 江苏绿艳高分子材料有限公司 | Special transparent TPU (thermoplastic polyurethane) for automobile nonskid chain and preparation method thereof |
-
2016
- 2016-12-30 CN CN201611257915.6A patent/CN106854272A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4161976A (en) * | 1976-07-10 | 1979-07-24 | Firma Carl Freudenberg | Anti skid chain |
| CN101735596A (en) * | 2009-12-15 | 2010-06-16 | 上海联景聚氨酯工业有限公司 | Thermoplastic polyurethane elastomer and manufacturing method thereof |
| CN103897138A (en) * | 2013-10-21 | 2014-07-02 | 江苏绿艳高分子材料有限公司 | Special transparent TPU (thermoplastic polyurethane) for automobile nonskid chain and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111607060A (en) * | 2020-07-13 | 2020-09-01 | 扬州雷应精密科技有限公司 | High-entropy polyurethane and preparation method thereof |
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Application publication date: 20170616 |