CN1030574C - High-temp. digestion resistant adhesive without metallic ions - Google Patents
High-temp. digestion resistant adhesive without metallic ions Download PDFInfo
- Publication number
- CN1030574C CN1030574C CN 93115911 CN93115911A CN1030574C CN 1030574 C CN1030574 C CN 1030574C CN 93115911 CN93115911 CN 93115911 CN 93115911 A CN93115911 A CN 93115911A CN 1030574 C CN1030574 C CN 1030574C
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- ethyl acetate
- formula ratio
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- component
- solidifying agent
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Abstract
The present invention relates to a high-temperature digestion resistant adhesive without metallic ions. The present invention is formed by that mixed dibasic acid polyester is firstly synthesized by using lauric acid, phthalic acid and polyatomic alcohol under the condition of not adding with any metal catalyst and any coupling agent, is then mixed with polyurethane generated by the reaction of castor oil, the mixed dibasic acid polyester and TDI, and is further reacted with NCO. Consequently, the adhesive has the advantages of good affinity to plastic films, strong adhesive force, high-temperature digestion resistance (125 DEG C) and no metallic ion.
Description
The present invention relates to a kind of tackiness agent, especially for the high-temperature boiling resistant tackiness agent of the non-metallic ion of food flexible packaging.
As the tackiness agent of flexible packaging production usefulness, existing some kinds drop into industrial production and are applied.But the tackiness agent of some special purposes as high-temperature boiling resistant food product pack tackiness agent, exists the some shortcomings part always.The flexible packaging industry to the requirement of this tackiness agent is: be applicable to that soft packaging eats food, tinned pre-, nonstaple food, children's pot foods, beverage etc. raw.Require high-temperature boiling resistant, nontoxic, acidproof, salt tolerant, oil resistant, alkaline-resisting, so that food boils, disinfection, and standing storage fresh-keeping (more than half a year).Be fit to simultaneously polyester film, dacron membrane, Al metallizing Fool, polypropylene, polyethylene and compound between them again.And existing food product pack tackiness agent, all non-refractory boilings can not be satisfied above-mentioned condition.They have contains metal ion, and what have contains coupling agent that does not meet hygienic standard or the like.
The purposes that the purpose of this invention is to provide a kind of high-temperature boiling resistant is wide, performance is excellent, meet the tackiness agent that food sanitation requires again.
Technology contents of the present invention is: adopt lauric acid, phthalic acid and polyvalent alcohol elder generation synthesis of mixed dibasic acid polyester, with the polyurethane comixing that generates with Viscotrol C, the mixed dibasic acid polyester that makes above and TDI reaction, generate with the NCO reaction.It belongs to modified polyurethane is tackiness agent, it mainly is good, bright, the look shallow advantages such as (being water white) of bond strength of utilizing polyurethane material to have, after modification, bond strength is improved greatly, boiling is not ftractureed under 125 ℃ of high temperature, metal ion is not nontoxic, and every index all is better than existing like product level.
1. its component is:
First component raw material proportioning (weight percent):
Lauric acid 4-8%
Phthalic acid 23-27%
Glycerol 8-12.5%
Ethylene glycol 10.5-14.5%
TriMethylolPropane(TMP) 4-5.5%
The ethyl acetate surplus
Second component raw material proportioning (weight percent):
Refined caster oil 36-37%
The mixed dibasic acid polyester 39-40% that makes above
Tolylene diisocyanate 11-12%
The ethyl acetate surplus
Solidifying agent proportioning raw materials (weight percent):
Tolylene diisocyanate 15-16%
TriMethylolPropane(TMP) 56-61%
The ethyl acetate surplus.
2. production technique
Synthesizing of first component:
(1) will add in the reactor by the material of formula ratio except that ethyl acetate, heated and stirred is fully reacted it;
(2) in 8 hours, make temperature of reaction rise to 280 ℃, note making the speed that distillates of water even by the room temperature equilibrium;
(3), steam the water that reaction generates 280 ℃ of following insulation reaction 3 hours;
(4) stop material in heating, the cooling reactor;
When (5) the mixed dibasic acid polyester that makes above in the still is cooled to 50 ℃, material is transferred in the mixing kettle, adds the ethyl acetate of formula ratio, it is standby to stir;
Synthesizing of second component:
(1) Viscotrol C of formula ratio and the mixed dibasic acid polyester that makes are above added in the reactor, be warming up to 50-65 ℃, add the tolylene diisocyanate of formula ratio, abundant stirring reaction;
(2) when temperature rises to 80-90 ℃, insulation reaction 5 hours;
(3) be cooled to 50 ℃, add the ethyl acetate of formula ratio, it is standby to stir.
Synthesizing of solidifying agent:
(1) tolylene diisocyanate and the ethyl ester ethyl ester with formula ratio adds in the reactor, starts stirring heating and heats up;
(2) when temperature reaches 60-70 ℃, add the TriMethylolPropane(TMP) of formula ratio, continue to stir, make it abundant reaction;
(3) under 70-80 ℃, keep reaction 3 hours;
(4) stop heating, reduce to room temperature, promptly get solidifying agent.
Synthesizing of tackiness agent:
To press 1 by prepared first, the second component of above-mentioned production technique: the 1(weight percent) add in the reactor, fully stirring makes it to mix, and promptly gets tackiness agent master glue.Then in main glue: solidifying agent=8: the ratio 1(weight percent) is added to both in the container (can add the dilution of part ethyl acetate) in case of necessity, after stirring.
The present invention compares with the above-mentioned tackiness agent of mentioning, has the following advantages:
1. the invention belongs to modified polyurethane is tackiness agent, the bond strength that it utilizes polyurethane material to have is good, bright, look shallow advantages such as (being water white), after modification, make that it is better to the avidity of plastic film (polyethylene, polypropylene, polyester, vacuum aluminum-coated, terylene), sticking power is firm, transparent, particularly high-temperature boiling resistant (125 ℃) and not metal ion, every index all are better than existing like product level.
2. tackiness agent of the present invention belongs to reaction autocatalysis type, has especially save the noble metal catalyst that in the past adopted, and makes tackiness agent of the present invention not contain any metal ion, meets the food sanitation requirement fully, and cost has reduced 35-40% simultaneously.
3. tackiness agent of the present invention relies on group of its structure self and adherend to form firm intermolecular forces and produce cohesive action, does not contain any coupling agent, does not contain any auxiliary agent that food sanitation requires that do not meet.
4. production technique of the present invention is easy, does not have reaction under high pressure in the production process, does not produce the poisonous and harmful resultant in the reaction process.Help environment protection.
Provide an embodiment below:
1. prescription of the present invention is:
First component raw material proportioning (weight percent):
Lauric acid 6%
Phthalic acid 25%
Glycerol 10.25%
Ethylene glycol 12.5%
TriMethylolPropane(TMP) 4.75%
The ethyl acetate surplus
Second component raw material proportioning (weight percent):
Refined caster oil 36.5%
The mixed dibasic acid polyester 39.5% that makes above
Tolylene diisocyanate 11.5%
The ethyl acetate surplus
Solidifying agent proportioning raw materials (weight percent):
Tolylene diisocyanate 15.5%
TriMethylolPropane(TMP) 58.5%
The ethyl acetate surplus.
2. production technique
Being divided into of first component:
(1) will add in the reactor by the material of formula ratio except that ethyl acetate, heated and stirred is fully reacted it;
(2) in 8 hours, make temperature of reaction rise to 280 ℃, note making the speed that distillates of water even by the room temperature equilibrium;
(3), steam the water that reaction generates 280 ℃ of following insulation reaction 3 hours;
(4) stop material in heating, the cooling reactor;
When (5) the mixed dibasic acid polyester that makes above in the still is cooled to 50 ℃, material is transferred in the mixing kettle, adds the ethyl acetate of formula ratio, it is standby to stir;
Synthesizing of second component:
(1) Viscotrol C of formula ratio and the mixed dibasic acid polyester that makes are above added in the reactor, be warming up to 50-60 ℃, add the tolylene diisocyanate of formula ratio, abundant stirring reaction;
(2) when temperature rises to 80-90 ℃, insulation reaction 5 hours;
(3) be cooled to 50 ℃, add the ethyl acetate of formula ratio, it is standby to stir.
Synthesizing of solidifying agent:
(1) tolylene diisocyanate and the ethyl ester ethyl ester with formula ratio adds in the reactor, starts stirring heating and heats up;
(2) when temperature reaches 60-70 ℃, add the TriMethylolPropane(TMP) of formula ratio, continue to stir, make it abundant reaction;
(3) under 70-80 ℃, keep reaction 3 hours;
(4) stop heating, reduce to room temperature, promptly get solidifying agent.
Synthesizing of tackiness agent:
To press 1 by prepared first, the second component of above-mentioned production technique: the 1(weight percent) add in the reactor, fully stirring makes it to mix, and promptly gets tackiness agent master glue.Then in main glue: solidifying agent=8: the ratio 1(weight percent) is added to both in the container (can add the dilution of part ethyl acetate) in case of necessity, after stirring.
Claims (4)
1, a kind of high-temperature boiling resistant tackiness agent of non-metallic ion, it carries out blend by first component, component B with 1: 1 (weight ratio) and the main glue and the solidifying agent that make are formed main glue: solidifying agent=8: 1 (weight ratio), wherein:
First component raw material proportioning (weight percent):
Lauric acid 4-8%
Phthalic acid 23-27%
Glycerol 8-12.5%
Ethylene glycol 10.5-14.5%
TriMethylolPropane(TMP) 4-5.5%
The ethyl acetate surplus
Second component raw material proportioning (weight percent):
Refined caster oil 36-37%
The mixed dibasic acid polyester 39-40% that makes above
Tolylene diisocyanate 11-12%
The ethyl acetate surplus
Solidifying agent proportioning raw materials (weight percent):
Tolylene diisocyanate 15-16%
TriMethylolPropane(TMP) 56-61%
The ethyl acetate surplus.
2, the high-temperature boiling resistant tackiness agent of non-metallic ion according to claim 1, the proportioning raw materials of first component, second component, solidifying agent is:
First component raw material proportioning (weight percent):
Lauric acid 6%
Phthalic acid 25%
Glycerol 10.25%
Ethylene glycol 12.5%
TriMethylolPropane(TMP) 4.75%
The ethyl acetate surplus
Second component raw material proportioning (weight percent):
Refined caster oil 36.5%
The mixed dibasic acid polyester 39.5% that makes above
Tolylene diisocyanate 11.5%
The ethyl acetate surplus
Solidifying agent proportioning raw materials (weight percent):
Tolylene diisocyanate 15.5%
TriMethylolPropane(TMP) 58.5%
The ethyl acetate surplus.
3, a kind of method for making of high-temperature boiling resistant tackiness agent of non-metallic ion, synthetic at first first, second component fully stirring of tackiness agent makes it to mix, and gets tackiness agent master glue, then main glue is mixed with solidifying agent, after stirring, wherein:
Synthesizing of first component:
(1) will add in the reactor by the material of formula ratio except that ethyl acetate, heated and stirred is fully reacted it;
(2) in 8 hours, make temperature of reaction rise to 280 ℃, note making the speed that distillates of water even by the room temperature equilibrium;
(3), steam the water that reaction generates 280 ℃ of following insulation reaction 3 hours;
(4) stop material in heating, the cooling reactor;
When (5) the mixed dibasic acid polyester that makes above in the still is cooled to 50 ℃, material is transferred in the mixing kettle, adds the ethyl acetate of formula ratio, it is standby to stir;
Synthesizing of second component:
(1) Viscotrol C of formula ratio and the mixed dibasic acid polyester that makes are above added in the reactor, be warming up to 50-65 ℃, add the tolylene diisocyanate of formula ratio, abundant stirring reaction;
(2) when temperature rises to 80-90 ℃, insulation reaction 5 hours;
(3) be cooled to 50 ℃, add the ethyl acetate of formula ratio, it is standby to stir;
Synthesizing of solidifying agent:
(1) tolylene diisocyanate and the ethyl ester ethyl ester with formula ratio adds in the reactor, starts stirring heating and heats up;
(2) when temperature reaches 65-70 ℃, add the TriMethylolPropane(TMP) of formula ratio, continue to stir, make it abundant reaction;
(3) under 70-80 ℃, keep reaction 3 hours;
(4) stop heating, reduce to room temperature, promptly get solidifying agent.
4, the method for making of the high-temperature boiling resistant tackiness agent of non-metallic ion according to claim 3 when it is characterized in that main glue mixes with solidifying agent, adds the dilution of part ethyl acetate, wherein:
Synthesizing of first component:
(1) will add in the reactor by the material of formula ratio except that ethyl acetate, heated and stirred is fully reacted it;
(2) in 8 hours, make temperature of reaction rise to 280 ℃, note making the speed that distillates of water even by the room temperature equilibrium;
(3), steam the water that reaction generates 280 ℃ of following insulation reaction 3 hours;
(4) stop material in heating, the cooling reactor;
When (5) the mixed dibasic acid polyester that makes above in the still is cooled to 50 ℃, material is transferred in the mixing kettle, adds the ethyl acetate of formula ratio, it is standby to stir;
Synthesizing of second component:
(1) Viscotrol C of formula ratio and the mixed dibasic acid polyester that makes are above added in the reactor, be warming up to 55 ℃, add the tolylene diisocyanate of formula ratio, abundant stirring reaction;
(2) when temperature rises to 85 ℃, insulation reaction 5 hours;
(3) be cooled to 50 ℃, add the ethyl acetate of formula ratio, it is standby to stir;
Synthesizing of solidifying agent:
(1) tolylene diisocyanate and the ethyl ester ethyl ester with formula ratio adds in the reactor, starts stirring heating and heats up;
(2) when temperature reaches 65 ℃, add the TriMethylolPropane(TMP) of formula ratio, continue to stir, make it abundant reaction;
(3) under 75 ℃, keep reaction 3 hours;
(4) stop heating, reduce to room temperature, promptly get solidifying agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93115911 CN1030574C (en) | 1993-11-15 | 1993-11-15 | High-temp. digestion resistant adhesive without metallic ions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93115911 CN1030574C (en) | 1993-11-15 | 1993-11-15 | High-temp. digestion resistant adhesive without metallic ions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1087927A CN1087927A (en) | 1994-06-15 |
| CN1030574C true CN1030574C (en) | 1995-12-27 |
Family
ID=4991441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93115911 Expired - Fee Related CN1030574C (en) | 1993-11-15 | 1993-11-15 | High-temp. digestion resistant adhesive without metallic ions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1030574C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110484190A (en) * | 2019-09-05 | 2019-11-22 | 山西省应用化学研究所(有限公司) | Caravan vehicle body solvent-free single-component moisture cure urethanes adhesive and preparation method thereof |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1079419C (en) * | 1999-03-12 | 2002-02-20 | 金坛市胶粘剂厂 | Composite dry adhesive for high temperature steamed polyurethane bag and its production process |
| CN1079418C (en) * | 1999-03-12 | 2002-02-20 | 金坛市胶粘剂厂 | Special adhesive for composite shielding ribbon of polyurethane cable and its production process |
| CN108949098A (en) * | 2018-06-21 | 2018-12-07 | 安徽扬帆充气游乐设备制造有限公司 | A kind of high-performance high adhesion PVC inflatable boat adhesive |
-
1993
- 1993-11-15 CN CN 93115911 patent/CN1030574C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110484190A (en) * | 2019-09-05 | 2019-11-22 | 山西省应用化学研究所(有限公司) | Caravan vehicle body solvent-free single-component moisture cure urethanes adhesive and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1087927A (en) | 1994-06-15 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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