CN100350982C - Liquid dressing for surgical department - Google Patents
Liquid dressing for surgical department Download PDFInfo
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- CN100350982C CN100350982C CNB200610012150XA CN200610012150A CN100350982C CN 100350982 C CN100350982 C CN 100350982C CN B200610012150X A CNB200610012150X A CN B200610012150XA CN 200610012150 A CN200610012150 A CN 200610012150A CN 100350982 C CN100350982 C CN 100350982C
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Abstract
The present invention relates to a surgical liquid dressing which is a single-layer film made of a mixed glue solution of the following ingredients: 100 parts by weight of water solution of polyvinyl alcohol, 4 to 8 parts by weight of acrylic ester emulsion contact adhesive and 1 part by weight of glycerol. The present invention also relates to another surgical liquid dressing which is a double-layer film made of the following two solutions: the bottom layer is the water solution of polyvinyl alcohol, and the upper layer is an alcoholic solution of alcohol-soluble polyamide. The present invention also relates to a third surgical liquid dressing which is a multi-layer film made of the following three layers of solutions: the bottom layer is the water solution of polyvinyl alcohol, the middle layer is the alcoholic solution of alcohol-soluble polyvinyl acetate, and the upper layer is the alcoholic solution of polyamide. Through compounding one or a plurality of polymers with proper additives, a plurality of film forming materials with sufficient strength, water resistance and biocompatibility are obtained. The surgical liquid dressings can be coated on the surface of an organism, such as the hand, limbs, belly and the like and has isolation and protection functions in a certain period of time. The surgical liquid dressings can be applied to occasions relative to medical care or personal hygiene protection, such as dressings in surgical operations, gloves for temporary protection, etc.
Description
Technical field
The present invention relates to a kind of liquid dressing for surgical department.Belong to the defensive dressing in medical treatment, the health field.
Background technology
At present, along with increasingly seriousization of virus overflowing situations such as HIV, SARS, H5N1, people more and more pay attention to the Personal hygiene protection in daily life, social activity.Need to obtain practical protection especially with the medical personnel of various virus and bacteria intimate contacts.At present China prevent with the contacted hands of polluter mainly be latex or plastic film glove with protective article.Lack comfortableness but this based article ubiquity breathability is bad, can not fully be harmonious and reduce the hand skin sensitivity greatly and the discarded weak point such as recovery that awaits that influences hand operated function, disposable product with everyone hand-type.Although thereby usage degree is higher, but still make us particularly medical personnel feel discontented.
This series products kind and manufacturer on the domestic market is limited at present, mainly concentrates on the protection field of industries such as keep a public place clean in smoke exhaust ventilator and kitchen, chemical industry, colliery, machinery, repairing, printing.The smeary effect (being called a class in the application's narration) of isolating is played in product or spraying or brush utensil (as smoke exhaust ventilator) surface in need protection, as: the disposable latent type protecting film of the permanent Science and Technology Ltd. of Beijing Jing Ze; The kitchen of the Lanzhou Chemistry and Physics Institute of the Chinese Academy of Sciences development film of keeping a public place clean, the transparent fit protecting film of peelable formula (number of patent application 2004100008981,95116588); Or be applied on hand, play greasy dirt or organic solvent, the resistant to pollution effect (in the application's narration, being called the b class) isolated at short notice, as the make the science and technology prosperous latent type glove of " hundred million dragons " board of company limited of: sky, Xinning, commercial Guangdong; The skin protection film of Shenyang Golden Horse Industrial Co., Ltd. (number of patent application 03133592).The main component of the said goods is natural polymer protein (a class) basically, and the synthetic high polymer of being aided with (b class) is also arranged, and is dispersed in water, alcohol, the glycerol equal solvent, by being applied on the body surface after the solvent evaporates and film forming.Film formation time is generally 2-4 minute (a class) or a few hours (b class), has suitable intensity and toughness, and keeps a few hours (a class) even 2 years (b class).Oil rub resistance and organic solvent, water solublity, peelable, easy-clear, generally transparent or semitransparent, about 5 yuan/kilogram of cost.Wherein a class also has basic biocompatibility, and is nontoxic non-stimulated.
This series products (being called the c class in the application's narration) at medical field but rarely has report at home.Being used for the bioprotein protecting film (number of patent application 200410022301) of skin surface maintenance or beauty treatment, being made of the animal proteinum collagen sponge that is adsorbing animal collagen, is an example of domestic minority c series products at last.
In the medical treatment application that particularly surgery protects, more pay attention to obstruct and the protection of protective material to water, body fluid, air, require to have certain moisture-proof frictional property, resistance to water and bactericidal properties, also higher to biocompatibility requirement.And how the product of above mentioning owing to be primary raw material with natural polymer protein, and intensity is limited, and is water solublity, and intensity is poorer under the condition that has water or body fluid to exist, and does not satisfy this respect requirement.
Western developed country above-mentionedly has good protective concurrently in research and development, use aspect the product of cheap property and comfortableness the advanced person many in China.Wherein a class and b series products are quite ripe, entered China market and become the reason that China develops similar products when SARS was popular in 2003.And the C series products also has ripe commodity to come out, and product category is various, with non-woven fabrics or the compound use of fabric, the various aspects that spread all over the surgery medical treatment, as protective clothing, operation towel, binder, anti-tissue adhesion barrier film, dressing, gauze or the like, can have isolation, protection, administration, nutrition, multi-efficiency such as antibiotic.Representational patent has: (1) is used to make the oil rub resistance of protective clothing and the skin protection composite bed (US PATENT4902558) that toxic chemical substance (as organic solvent, coating, paint, adhesive, epoxide etc.) pollutes.Its adopts the toxic chemical substance hypotonicity but certain absorptive PVAE (polyvinyl alcohol-ethylene copolymer) thin film is arranged as the toxic chemical substance barrier layer.But, can obviously reduce if directly contact its protective with perspiration because of its suction.Therefore it is compound to carry out lamination as intermediate layer and waterproof material such as polyethylene, polypropylene etc., makes protective clothing material.(2) there is fine bonding force to be easy to wash with water the medical wound card (US PATENT6,576,575) that removes or remove again to skin.It is that main body is as basic unit (the isolated protective layer of wound) with the water-soluble polyvinyl alcohol fibers non-woven fabrics; by the polyacrylic acid pressure sensitive adhesive that removes among water solublity or the Yi Zaishui with base adhesive on skin, the position of central authorities of basic unit contact wound also can be coated with the liner of administration or imbibition.PVA here and polyacrylic acid pressure sensitive adhesive are all water-soluble or easily remove in water, so that be easy to use water treatment after using.(3) but be used to protect the transparent medical protection layer (US PATENT5,395,675) of the one-way ventilating of operative incision or wound.Its main body is " window " sheet that rigidity or polyvinyls such as semirigid transparent polyester, nylon, polypropylene, polrvinyl chloride that can unidirectional dampness are made, and " window " sheet is fixed in the polyacrylic acid pressure sensitive adhesive on pliability ductility plastics (polyvinyls such as polyester, nylon, polypropylene, the polrvinyl chloride etc.) thin film of being coated at injury position.These products are all compound multiple synthetic high polymer relates to PVA and polyacrylic acid pressure sensitive adhesive more, also has PE, PP, PET, PA and their copolymer etc.Utilize their different qualities, give the goods multi-functional at different instructions for uses, wherein medical products has all taken into full account the biocompatibility of material.But its water solublity is not all avoided in the use for PVA and polyacrylic acid pressure sensitive adhesive, or utilizes its water solublity so that use the back to remove, or compound with other material, plays the effect of waterproofing protection.Simultaneously, less with the fluid product report of Tu Suiyong, hands does not appear in the newspapers with the medical protection articles for use.
Summary of the invention
At above-mentioned condition, the object of the present invention is to provide a kind of liquid dressing for surgical department.A kind of disposable protecting film that supplies the usefulness of medical treatment or Personal hygiene protection is provided, and alternative glove use in medical treatment or Personal hygiene protection occasion.Its adopts the synthetic high polymer raw material of biocompatibility, with Tu Suiyong, with after promptly wash, transparent or semitransparent, the film forming fast drying has certain intensity and moisture-proof frictional property, the non-stimulated and injury to skin, locate to contact not cause infection with the human body wound is broken, and cost is lower.
For achieving the above object, the present invention takes following technical scheme:
A kind of liquid dressing for surgical department, this liquid dressing for surgical department are the monofilms of being made by the mixed glue solution of following formula components,
Polyvinyl alcohol water solution 100 weight portions
Acrylic acid ester emulsion pressure sensitive adhesive 4-8 weight portion
Glycerol 1 weight portion;
Wherein, the concentration of polyvinyl alcohol water solution is 10-12 weight %, and the degree of polymerization of polyvinyl alcohol is 1750 ± 50, and alcoholysis degree is 99.9%; The solid content of acrylic acid ester emulsion pressure sensitive adhesive is 51.0-53.0%, and viscosity is 1600-2100Pa.s; Glycerol is an analytical pure.
Described thickness of monolayer is 0.04-0.08mm.
Another kind of liquid dressing for surgical department, this liquid dressing for surgical department is the duplicature of being made by following two layers of solution,
The bottom polyvinyl alcohol water solution
Upper strata alcohol dissolubility polyamide alcoholic solution;
Wherein, the concentration of polyvinyl alcohol water solution is 10-12 weight %, and the degree of polymerization of polyvinyl alcohol is 1750 ± 50, and alcoholysis degree is 99.9%; The polyamide alcoholic solution is the same weight ratio mixture dissolving with 95% ethanol or 95% ethanol and isopropyl alcohol, and the concentration of polyamide alcoholic solution is 50 weight %, and employed isopropyl alcohol is an analytical pure.
The thickness of described duplicature is 0.04-0.08mm, and the thickness of underlying membrane and upper layer film is respectively 0.02-0.04mm.
Also have a kind of liquid dressing for surgical department, this liquid dressing for surgical department is by following three layers of multicoat membrane that solution is made,
The bottom polyvinyl alcohol water solution
Middle level alcohol dissolubility polyvinyl acetate alcoholic solution
Upper strata polyamide alcoholic solution;
Wherein, the concentration of polyvinyl alcohol water solution is 10-12 weight %, and the degree of polymerization of polyvinyl alcohol is 1750 ± 50, and alcoholysis degree is 99.9%; Alcohol dissolubility polyvinyl acetate is a food stage, the molecular weight ranges of alcohol dissolubility polyvinyl acetate is: 1-10 ten thousand, alcohol dissolubility polyvinyl acetate alcoholic solution is the same weight ratio mixture dissolving with 95% ethanol, n-butyl alcohol and isopropyl alcohol, the concentration of alcohol dissolubility polyvinyl acetate alcoholic solution is weight 50%, and employed n-butyl alcohol and isopropyl alcohol are analytical pure; The polyamide alcoholic solution is the same weight ratio mixture dissolving with 95% ethanol or 95% ethanol and isopropyl alcohol, and the concentration of polyamide alcoholic solution is 50 weight %, and employed isopropyl alcohol is an analytical pure.
The thickness of described trilamellar membrane is 0.06-0.10mm, and the thickness of underlying membrane and mesopelagic layer is respectively 0.02-0.033mm, and the thickness of upper layer film is 0.02-0.034mm.
In the present invention, employed polyvinyl alcohol, polyvinyl acetate, polyamide are synthetic high polymer, and employed these synthetic high polymers are the medical or food grade materials nontoxic to organism, that biocompatibility is good.Wherein host material polyvinyl alcohol (PVA) is for water (or alcohol) soluble macromolecular, compares with other water soluble polymer, and viscosity and hygroscopicity are all lower, and the tension stress of film property and film and burnish resistance are all better, for the invention provides main filming performance; The acrylic acid ester emulsion pressure sensitive adhesive is a polymer emulsion, aqueous, and (PVA) provides good adhesive property when having fine intermiscibility with polyvinyl alcohol, makes protecting film be easy to fit in skin; Other two kinds of macromolecules (being polyvinyl acetate, polyamide) contain hydrophobic group, are pure dissolubility, are mainly and the invention provides resistance to water and moisture-proof frictional property, and the introducing of alcoholic solvent simultaneously can be shortened film formation time compared with aqueous solvent.
Advantage of the present invention is:
The present invention obtains the filmogen that several have sufficient intensity, resistance to water and biocompatibility by one or more polymer composite with suitable additives; Organism surface be can be coated on,, isolation, protective effect played within a certain period of time such as positions such as staff, extremity, abdominal paries.Can be applicable to the occasion relevant, the dressing during as surgical operation, protect with glove etc. temporarily with the protection of medical treatment or Personal hygiene.
The specific embodiment
Embodiments of the invention adopt following primary raw material:
Polyvinyl alcohol (PVA), trade names are 1799, and the degree of polymerization is 1750 ± 50, and alcoholysis degree is 99.9%, and available water is dissolved, and make the polyvinyl alcohol water solution of weight percent concentration 10-12%;
Acrylic acid ester emulsion pressure sensitive adhesive (PAE) trade names are PS-58N, solid content 51.0-53.0%, viscosity 1600-2100Pa.s;
Alcohol dissolubility polyvinyl acetate (PVAc), food stage, high polymerization degree, its molecular weight ranges is: 1-10 ten thousand, with the same weight ratio mixture dissolving of 95% ethanol, n-butyl alcohol and isopropyl alcohol, make the polyvinyl acetate alcoholic solution of weight percent concentration 50%;
Alcohol dissolubility polyamide (PA) with the same weight ratio mixture dissolving of 95% ethanol or 95% ethanol and isopropyl alcohol, is made the polyvinyl acetate alcoholic solution of weight percent concentration 50%;
Wherein, the percentage ratio in above-mentioned employed 95% ethanol is percent by volume; Glycerol, isopropyl alcohol, n-butyl alcohol are analytical pure.
Embodiment 1-monofilm
Prescription: polyvinyl alcohol water solution (10 weight %): 100 weight portions
Acrylic acid ester emulsion pressure sensitive adhesive: 4 weight portions
Glycerol: 1 weight portion
Dissolving 10gPVA under with 90g deionized water mechanical agitation under 60 ℃ of conditions, obtain water white 10 weight % polyvinyl alcohol water solutions.Add acrylic acid ester emulsion pressure sensitive adhesive and glycerol by prescription successively, stirring is uniformly dispersed mixture.Dip in to get in right amount with Glass rod and on glass plate, film, or drip on hand, the mutual applied back natural drying of both hands or dry up 1min-number minute promptly saturating doing with warm braw.Making thickness of monolayer is 0.08mm.Can remove or with cold water or warm water cleaning.
Embodiment 2-monofilm
The acrylic acid ester emulsion pressure sensitive adhesive is 8 weight portions in the prescription, and the prescription of polyvinyl alcohol water solution, glycerol and mixed glue solution preparation are all with embodiment 1.Select the suitable spray bottle splendid attire glue in aperture, be sprayed at hand.Making thickness of monolayer is 0.06mm.Can remove or with cold water or warm water cleaning.
Embodiment 3-monofilm
Polyvinyl alcohol water solution concentration is 12 weight % and to make thickness of monolayer be the 0.04mm in prescription, and other is with embodiment 1.
Embodiment 4-double-layered compound film
Prescription: polyvinyl alcohol water solution (10 weight %)
Polyamide alcoholic solution (50 weight %)
The poly-vinyl alcohol solution of 10 weight % is pressed embodiment 1 preparation; With heavy polyamide such as 95% dissolve with ethanols, obtain water white 50 weight % polyamide solution.Dip in Glass rod and to get an amount of poly-vinyl alcohol solution and film on glass plate, or drip on hand, the mutual applied back natural drying of both hands or blow to surfaces of tacky with warm braw dips in the polyamide solution of getting or dripping equivalent again, smoothens the back natural drying or dries up with warm braw.1-2min is promptly saturating to be done.The thickness of making duplicature is 0.08mm.Removal is with embodiment 1.
Three layers of composite membrane of embodiment 5-
Prescription: polyvinyl alcohol water solution (10 weight %)
Alcohol dissolubility polyvinyl acetate alcoholic solution (50 weight %)
Polyamide alcoholic solution (50 weight %)
10 weight % poly-vinyl alcohol solutions, 50 weight % polyamide solution are pressed the embodiment preparation; Heavy with the dissolving of mixture on year-on-year basis of 95% ethanol, n-butyl alcohol, isopropyl alcohol etc., obtain water white 50 weight % alcohol dissolubility polyvinyl acetate ester solution.The film forming order is: the first floor (bottom) is coated with polyvinyl alcohol water solution; Be coated with the polyvinyl acetate alcoholic solution during surfaces of tacky, be the intermediate layer; And then be coated with the polyamide alcoholic solution, be outermost layer.Smoothen the back natural drying or dry up with warm braw.1-2min is promptly saturating to be done.The thickness of making trilamellar membrane is 0.09mm.Removal is with embodiment 1.
The resulting protecting film of embodiment 1-5 is tested, is obtained following result:
(1) stretch-resistance
At fracture strength and the elongation at break of room temperature (20 ℃) with the puller system test membrane.Fracture strength＞the 5N of the monofilm that embodiment 1-3 obtains, elongation at break＞50%; Fracture strength＞the 2N of the composite membrane that embodiment 4 obtains, elongation at break＞17%; Fracture strength＞the 5N of the composite membrane that embodiment 4 obtains, elongation at break＞60%.All show certain intensity and ductility, be applied to and be easy to into complete film on hand, no tight sense.
(2) resistance to water
Under room temperature (20 ℃) quiescent conditions, do the solubility experiment of 24hr.The dissolubility of the monofilm that embodiment 1-3 obtains＜25%, the dissolubility of the composite membrane that embodiment 4 obtains＜15%, the dissolubility of the composite membrane that embodiment 5 obtains＜15%.
(3) rub resistance
Room temperature (20 ℃) film forming is done machinery control reciprocating friction with dry or moistening hospital gauze on test board, record causes the friction number of times of hole.Dry friction number of times＞1000 of the monofilm that embodiment 1-3 obtains time, wet friction number of times＞20 time; Dry friction number of times＞330 of the composite membrane that embodiment 4 obtains time, wet friction number of times＞200 time; Dry friction number of times＞150 of the composite membrane that embodiment 5 obtains time, wet friction number of times＞50 time.Overall characteristic is investigated characteristic (2), (3), can satisfy the instructions for use in the wet environment in the short time.
(4) fast filming
Three kinds of prescription film formation times that obtain at room temperature (20 ℃) embodiment 1-5 all＜10min, (the fastest can at the 1min inner drying).If impose the warm braw oven dry, 1-2min can be dry.
(5) biocompatibility
Component solution among mixed glue solution among the embodiment 1-3 and the embodiment 4,5 is annotated respectively in the people white rabbit body, regularly observed, continuous 8 days body weight, feed, body temperature, movable no abnormal.All has excellent biological compatibility.
(6) bactericidal properties
The resulting protecting film of embodiment 1-5 is to Candida albicans, gold-coloured staphylococci, escherichia coli killing rate equal 100%.
(7) cost is low
To about 30 yuan/kilogram of the resulting protecting film account cost of embodiment 1-5.
Claims (6)
1, a kind of liquid dressing for surgical department is characterized in that, this liquid dressing for surgical department is the monofilm of being made by the mixed glue solution of following formula components,
Polyvinyl alcohol water solution 100 weight portions
Acrylic acid ester emulsion pressure sensitive adhesive 4-8 weight portion
Glycerol 1 weight portion;
Wherein, the concentration of polyvinyl alcohol water solution is 10-12 weight %, and the degree of polymerization of polyvinyl alcohol is 1750 ± 50, and alcoholysis degree is 99.9%; The solid content of acrylic acid ester emulsion pressure sensitive adhesive is 51.0-53.0%, and viscosity is 1600-2100Pa.s; Glycerol is an analytical pure.
2, liquid dressing for surgical department according to claim 1 is characterized in that, described thickness of monolayer is 0.04-0.08mm.
3, a kind of liquid dressing for surgical department is characterized in that, this liquid dressing for surgical department is the duplicature of being made by following two layers of solution,
The bottom polyvinyl alcohol water solution
Upper strata alcohol dissolubility polyamide alcoholic solution;
Wherein, the concentration of polyvinyl alcohol water solution is 10-12 weight %, and the degree of polymerization of polyvinyl alcohol is 1750 ± 50, and alcoholysis degree is 99.9%; The polyamide alcoholic solution is the same weight ratio mixture dissolving with 95% ethanol or 95% ethanol and isopropyl alcohol, and the concentration of polyamide alcoholic solution is 50 weight %, and employed isopropyl alcohol is an analytical pure.
4, liquid dressing for surgical department according to claim 3 is characterized in that, the thickness of described duplicature is 0.04-0.08mm, and the thickness of underlying membrane and upper layer film is respectively 0.02-0.04mm.
5, a kind of liquid dressing for surgical department is characterized in that, this liquid dressing for surgical department is by following three layers of multicoat membrane that solution is made,
The bottom polyvinyl alcohol water solution
Middle level alcohol dissolubility polyvinyl acetate alcoholic solution
Upper strata polyamide alcoholic solution;
Wherein, the concentration of polyvinyl alcohol water solution is 10-12 weight %, and the degree of polymerization of polyvinyl alcohol is 1750 ± 50, and alcoholysis degree is 99.9%; Alcohol dissolubility polyvinyl acetate is a food stage, the molecular weight ranges of alcohol dissolubility polyvinyl acetate is: 1-10 ten thousand, alcohol dissolubility polyvinyl acetate alcoholic solution is the same weight ratio mixture dissolving with 95% ethanol, n-butyl alcohol and isopropyl alcohol, the concentration of alcohol dissolubility polyvinyl acetate alcoholic solution is weight 50%, and employed n-butyl alcohol and isopropyl alcohol are analytical pure; The polyamide alcoholic solution is the same weight ratio mixture dissolving with 95% ethanol or 95% ethanol and isopropyl alcohol, and the concentration of polyamide alcoholic solution is 50 weight %, and employed isopropyl alcohol is an analytical pure.
6, liquid dressing for surgical department according to claim 5 is characterized in that, the thickness of described trilamellar membrane is 0.06-0.10mm, and the thickness of underlying membrane and mesopelagic layer is respectively 0.02-0.033mm, and the thickness of upper layer film is 0.02-0.034mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610012150XA CN100350982C (en) | 2006-06-07 | 2006-06-07 | Liquid dressing for surgical department |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610012150XA CN100350982C (en) | 2006-06-07 | 2006-06-07 | Liquid dressing for surgical department |
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| CN1883716A CN1883716A (en) | 2006-12-27 |
| CN100350982C true CN100350982C (en) | 2007-11-28 |
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| CNB200610012150XA Expired - Fee Related CN100350982C (en) | 2006-06-07 | 2006-06-07 | Liquid dressing for surgical department |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101870791B (en) * | 2010-02-26 | 2012-02-29 | 中国科学院长春应用化学研究所 | Method for preparing hygroscopic film |
| CN103463669A (en) * | 2013-09-16 | 2013-12-25 | 重庆海默尼生物技术有限公司 | Liquid wound dressing and preparation method thereof |
| CN105999393A (en) * | 2016-07-15 | 2016-10-12 | 蓝佳堂生物医药（福建）有限公司 | Liquid band-aid and preparation method thereof |
| CN108815569A (en) * | 2018-06-20 | 2018-11-16 | 北京点域科技有限公司 | A kind of medical type wound repairs the preparation method of liquid |
| CN108939144A (en) * | 2018-07-27 | 2018-12-07 | 广州默拓医药科技有限公司 | A kind of liquid dressing |
| CN111195369A (en) * | 2020-01-20 | 2020-05-26 | 蓝佳堂生物医药（福建）有限公司 | Preparation method of waterproof liquid wound dressing |
| CN111184906B (en) * | 2020-02-19 | 2020-12-29 | 江南大学 | PVA-based liquid dressing and preparation method thereof |
| CN111228567A (en) * | 2020-03-12 | 2020-06-05 | 陕西天宇长安健康产业集团有限公司 | Liquid dressing containing polyoxyethylene lauryl alcohol ether and preparation method thereof |
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| EP0589431A1 (en) * | 1992-09-23 | 1994-03-30 | Viskase Corporation | Heat shrinkable nylon food casing having a functionalized ethylenic polymer core layer |
| WO1998006571A1 (en) * | 1996-08-14 | 1998-02-19 | Sengewald Verpackungen Gmbh | Easily compostable composite, multilayered foil, process for producing the same and its use |
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