EP0506807B1 - Feuille souple, resistant a la dechirure et l'eclatement, peu absorbante aux liquides et a porosite controlee - Google Patents
Feuille souple, resistant a la dechirure et l'eclatement, peu absorbante aux liquides et a porosite controlee Download PDFInfo
- Publication number
- EP0506807B1 EP0506807B1 EP91901826A EP91901826A EP0506807B1 EP 0506807 B1 EP0506807 B1 EP 0506807B1 EP 91901826 A EP91901826 A EP 91901826A EP 91901826 A EP91901826 A EP 91901826A EP 0506807 B1 EP0506807 B1 EP 0506807B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fact
- sheet
- resistant
- sheet according
- moisture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/10—Packing paper
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1303—Paper containing [e.g., paperboard, cardboard, fiberboard, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249994—Composite having a component wherein a constituent is liquid or is contained within preformed walls [e.g., impregnant-filled, previously void containing component, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
- Y10T428/253—Cellulosic [e.g., wood, paper, cork, rayon, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
- Y10T428/254—Polymeric or resinous material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
- Y10T428/268—Monolayer with structurally defined element
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
- Y10T428/269—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension including synthetic resin or polymer layer or component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/27—Web or sheet containing structurally defined element or component, the element or component having a specified weight per unit area [e.g., gms/sq cm, lbs/sq ft, etc.]
- Y10T428/273—Web or sheet containing structurally defined element or component, the element or component having a specified weight per unit area [e.g., gms/sq cm, lbs/sq ft, etc.] of coating
- Y10T428/277—Cellulosic substrate
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
- Y10T442/2402—Coating or impregnation specified as a size
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
- Y10T442/2484—Coating or impregnation is water absorbency-increasing or hydrophilicity-increasing or hydrophilicity-imparting
Definitions
- the present invention relates to a flexible sheet which can be used especially for sterilizable packaging.
- a first property is that the sheet must be flexible to ability to form sachets into which objects of various shapes and sizes.
- a second property is that the sheet must be resistant to tearing as well as bursting. Indeed, it is intended for contain objects which may be heavy and blunt or sharp. In addition, it is intended in the form of a sachet, during sterilization with gases, for example ethylene oxide, to be subjected to pressure during gas injection and strong posterior depression during the evacuation of gases, which must be complete.
- gases for example ethylene oxide
- a third property is that the sheet must be slightly absorbent especially with regard to water, so that water or other products liquids do not penetrate through the sachet formed by the sheet, from outside to inside, by defiling the wrapped object, in the bag.
- Such sheets of paper are sold to manufacturers of sterilizable sachets or packaging that make up the sachet having a layer of lacquer which ensures the connection between the edges of the sheet and a transparent film.
- processors apply heat-sealable lacquer, aqueous or solvent medium, so as to preserve a certain gas permeability of paper.
- the bags or pouches are then heat-sealed with plastic films.
- Sheets have also been made of the dry non-woven type, that is to say that a mattress of synthetic fibers, for example polyethylene, is made, which is bonded together, when hot. These sheets are manufactured by the company DU PONT DE NEMOURS and sold under the name of TYVEK R. These sheets are resistant to tearing and bursting. In addition, they are flexible. However, a major drawback of these sheets is that their thickness is very heterogeneous, that is to say that the distribution of the fibers per unit area is irregular, which means that the porosity of the sheet is not uniform. Thus, in certain places, the sheet will have pores of too large diameter, which will have the effect that the microorganisms will be able to penetrate inside the packaging produced using this sheet. On the contrary, in certain places, the sheet will have pores of too small diameter, which will hinder the penetration of the molecules of sterilizing gas. In addition, these sheets are absolutely permanent, that is to say non-biodegradable.
- the invention is remarkable in that, according to a person skilled in the art, it it is difficult to combine the requisite qualities simultaneously. Indeed, the products that improve mechanical characteristics increase the rigidity, therefore decrease flexibility.
- the first fabric softeners mentioned destroy connections interfibers, so they decrease the mechanical characteristics.
- the second cited do not have this disadvantage but they oppose the action of the bonding agents which give the barrier properties leaf.
- the invention relates to a flexible sheet, resistant to tearing and bursting, very little absorbent with water or other liquid, with controlled porosity, printable, comprising a support based on cellulose fibers of which at least one of the faces is impregnated with a composition comprising at least one binder, characterized in that the composition contains at least one moisture-retaining agent and at least one bonding agent, such as the measured COBB 60 bonding according to ISO535 standard, is less than 20 g / m 2 , that the TABER stiffness, measured according to ISO 2493 standard is less than 2.5 and that the amount of moisture-retaining agent is less than about 20% by weight dry leaf.
- the sheet preferably contains at least 1% moisture-retaining agent.
- the humidity-retaining agent is preferably chosen from the group formed by urea, a nitrate salt or their mixtures.
- urea-nitrate mixture the mixture can preferably be used in a urea / sodium nitrate ratio of 2: 1.
- the bonding agent is chosen from the group formed by wax or paraffin dispersions, alkyl ketene dimers, alkylene succinic anhydrides, stearic anhydrides and their mixtures.
- the binder is chosen from the group formed by polyvinyl alcohol, native starch or its derivatives, cellulose ethers or esters, alginates, guaranates or mixtures thereof.
- the impregnation composition is preferably carried out in the medium aqueous.
- the fibrous support is preferably a support formed mainly cellulose fibers.
- This support is preferably not bonded en masse; it can contain at least one wet resistance.
- the sheet is produced by a papermaking process.
- the support can be impregnated with the composition according to the invention, using a sizing press. Any other means of impregnation or bedding usually used in stationery may be suitable.
- the invention makes it possible to provide printable sheets, preferably by heliographic printing, offset or flexographic.
- the invention makes it possible to provide sheets whose physical characteristics are homogeneous, i.e. substantially the same in the cross direction as in the running direction.
- the invention makes it possible to provide sheets which are the more easily biodegradable after use and the cost of manufacturing is competitive.
- the invention is remarkable in that a sheet is obtained having a COBB of less than 20 g / m2 and up to 12 g / m2, and having a TABER stiffness of less than 2.5 and having an index of tear greater than 80 cNm2 / g.
- the following examples are carried out on a paper machine of laboratory. We impregnate, using a sizing press, a support based on cellulose fibers, not mass bonded. The compositions for the impregnation bath are carried out in medium aqueous.
- the tear index is measured according to ISO standard 1974.
- the dry burst index is measured according to the ISO 2758 measurement.
- the wet burst index is measured according to ISO standard 3686 (after immersion in water for ten minutes). (after immersion in water for ten minutes). Burst REH (wet strength) is the ratio of the wet burst and dry burst indices, multiplied by 100.
- TABER stiffness is measured according to ISO 2493.
- BENDTSEN porosity is measured according to ISO 5636/3.
- the dry recovery expresses the quantity of sauce by dry weight absorbed per sheet per square meter.
- the sheets obtained are sterilizable. They are sealable and peelable.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Materials For Medical Uses (AREA)
- Packages (AREA)
- Laminated Bodies (AREA)
- Wrappers (AREA)
Description
- au moins des fibres cellulosiques,
- éventuellement des fibres synthétiques,
- éventuellement un agent de résistance à l'état humide,
- au moins un liant,
- au moins un agent de maintien de l'humidité en une quantité inférieure à 20% environ en poids sec de la feuille,
- au moins un agent de collage.
- jusqu'à 5% en poids sec d'un liant
- jusqu'à 5% en poids sec d'une dispersion aqueuse de paraffine
- jusqu'à 20% en poids sec d'urée ou d'un mélange urée-nitrate de sodium par rapport au poids de la feuille sèche.
- une souplesse suffisante pour pouvoir former des emballages.
- une résistance à la déchirure et à l'éclatement suffisante pour résister à des objets lourds et contondants.
- un absorption faible à l'eau.
- une porosité contrôlée, c'est-à-dire des diamètres de pores réguliers et suffisamment grands pour permettre le passage de molécules gazeuses mais suffisamment petits pour empêcher le passage de micro-organismes.
(après immersion dans l'eau pendant dix minutes).
Le REH éclatement (résistance à l'état humide) est le rapport des indices d'éclatement humide et d'éclatement sec, multiplié par 100.
EXEMPLE | 1 | 2 | 3 | 4 |
Bain d'imprégnation : | ||||
. liant : alcool polyvinylique (% en poids sec/bain) | 1 | 1 | 1 | 1 |
. agent de collage : dispersion aqueuse de paraffine (% en poids sec/bain) | 2 | 2 | 2 | 2 |
. agent de maintien d'humidité : (% en poids sec/bain) | ||||
- urée | 20 | 20 | 14 | 14 |
- nitrate de sodium | 6 | 6 | ||
Reprise sèche (g/m2) | 13 | 5 | 14 | 7 |
Grammage | 103 | 107 | 105 | 109 |
Epaisseur | 133 | 133 | 146 | 135 |
COBB C60 | 12,5 | 12 | 14 | 13 |
Indice de déchirure | 88 | 99 | 84 | 93 |
Indice d'éclatement sec | 43,5 | 50 | 46 | 51,5 |
Indice d'éclatement humide | 15,5 | 21 | 19,5 | 23 |
REH éclatement | 36 | 42 | 42 | 45 |
Rigidité TABER | 1,61 | 2,49 | 1,21 | 2,25 |
Porosité BENDTSEN | 300 | 330 | 350 | 310 |
EXEMPLE | 1 | 2 | 3 | 4 |
Grammage | ||||
- vapeur | 104 | 112 | - | 105 |
- oxyde d'éthylène | 104 | 112 | 106 | 106 |
- rayons gamma | 103 | 111 | 104 | 106 |
Indice de déchirure | ||||
- vapeur | 91 | 109 | - | 97 |
-oxyde d'éthylène | 88 | 106 | 89 | 96 |
- rayons gamma | 65 | 62 | 62 | 67 |
Indice d'éclatement sec | ||||
- vapeur | 42 | 45 | - | 31 |
- oxyde d'éthylène | 47 | 50 | 48 | 34 |
- rayons gamma | 36 | 38 | 41 | 25 |
Indice d'éclatement humide | ||||
- vapeur | 12 | 10 | - | 15,5 |
- oxyde d'éthylène | 16 | 20 | 23 | 22 |
- rayons gamma | 11 | 13,5 | 16,5 | 17 |
REH éclatement | ||||
- vapeur | 29 | 38 | - | 34 |
- oxyde d'éthylène | 34 | 44 | 43 | 45 |
- rayons gamme | 31 | 40 | 42 | 40 |
Rigidité TABER | ||||
- vapeur | 1,25 | 2,19 | - | 2,09 |
oxyde d'éthylène | 1,70 | 2,50 | 1,27 | 2,11 |
- rayons gamme | 1,71 | 2,37 | 1,11 | 2,22 |
Porosité BENDTSEN | ||||
- vapeur | 605 | 350 | - | 340 |
- oxyde d'éthylène | 310 | 330 | 360 | 330 |
- rayons gamma | 340 | 340 | 360 | 325 |
COMPOSITION | |||||||||||
Alcool PV | 1% | 1% | 1% | ||||||||
Sorbitol | 58% | 58% | 58% | ||||||||
Urée | 13% | 16% | 14% | 23% | 16% | 20% | 23% | ||||
Nitrate | 7% | 8% | 7% | 8% | |||||||
Céténe dimère | 3% | 10% | 3% | 3% | 6% | 3% | |||||
Paraffine | 9% | 5% | 5% | 5% | 5% | ||||||
Reprise sèche globale | 23% | 29% | 18% | 14% | 15% | 15% | 15% | 13% | 14% | 15% | |
Cobb 1 minute | 32 | 55 | 22 | 23 | 15 | 23 | 14 | 14 | 23 | 13 |
Claims (8)
- Feuille souple, résistant à la déchirure et à l'éclatement, très peu absorbante vis-à-vis de l'eau ou autre liquide, à porosité contrôlée, imprimable, comportant un support à base de fibres cellulosiques dont au moins l'une des faces est imprégnée d'une composition comprenant au moins un liant, caractérisée par le fait que la composition contient au moins un agent de maintien de l'humidité et au moins un agent de collage, telle que le collage COBB60 mesuré selon la norme ISO535, est inférieur à 20 g/m2, que la rigidité TABER, mesurée selon la norme ISO 2493 est inférieure à 2.5 et que la quantité d'agent de maintien de l'humidité est inférieure à 20 % environ en poids sec de la feuille.
- Feuille selon la revendication 1, caractérisée par le fait qu'elle contient au moins 1 % d'agent de maintien de l'humidité.
- Feuille selon l'une des revendications 1 à 2, caractérisée par le fait que l'agent de maintien de l'humidité est l'urée, un sel de nitrate ou leurs mélanges.
- Feuille selon l'une des revendications 1 à 3, caractérisée par le fait que l'agent de maintien de l'humidité est un mélange urée/nitrate de sodium dans un rapport 2:1.
- Feuille selon l'une des revendications 1 à 4, caractérisée par le fait que l'agent de collage est choisi dans le groupe formé par les dispersions de cires ou de paraffine, les dimères d'alkylcétène, les anhydrides alkylènes succiniques, les anhydrides stéariques et leurs mélanges.
- Feuille selon l'une des revendications 1 à 5 caractérisée par le fait que le liant est choisi dans le groupe formé par l'alcool polyvinylique, l'amidon natif ou ses dérivés, les éthers ou esters de cellulose, les alginates, les guaranates ou leurs mélanges.
- Feuille selon l'une des revendications 1 à 6, caractérisée par le fait qu'elle contient un agent de résistance humide.
- Emballage de stérilisation caractérisé par le fait qu'il comporte au moins une feuille selon l'une des revendications 1 à 7.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8917147A FR2656346B1 (fr) | 1989-12-22 | 1989-12-22 | Feuille souple, resistant a la dechirure et l'eclatement, peu absorbante aux liquides et a porosite controlee. |
FR8917147 | 1989-12-22 | ||
PCT/FR1990/000940 WO1991010011A1 (fr) | 1989-12-22 | 1990-12-21 | Feuille souple, resistant a la dechirure et l'eclatement, peu absorbante aux liquides et a porosite controlee |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0506807A1 EP0506807A1 (fr) | 1992-10-07 |
EP0506807B1 true EP0506807B1 (fr) | 1998-05-20 |
Family
ID=9388929
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91901826A Expired - Lifetime EP0506807B1 (fr) | 1989-12-22 | 1990-12-21 | Feuille souple, resistant a la dechirure et l'eclatement, peu absorbante aux liquides et a porosite controlee |
Country Status (7)
Country | Link |
---|---|
US (1) | US5180614A (fr) |
EP (1) | EP0506807B1 (fr) |
AT (1) | ATE166404T1 (fr) |
AU (1) | AU7053891A (fr) |
DE (1) | DE69032327D1 (fr) |
FR (1) | FR2656346B1 (fr) |
WO (1) | WO1991010011A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10272639B2 (en) | 2015-03-23 | 2019-04-30 | Emd Millipore Corporation | Abrasion resistant film for biocontainers |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5663218A (en) * | 1992-03-03 | 1997-09-02 | Lafarge Materiaux De Specialites | Protection from shocks, capable of deforming progressively and in an irreversible manner |
FR2688239B1 (fr) * | 1992-03-03 | 1995-03-31 | Lafarge Nouveaux Materiaux | Composition pour la fabrication d'un materiau utile comme protection contre les chocs et emballage protecteur realise grace a ce materiau. |
US5667753A (en) * | 1994-04-28 | 1997-09-16 | Advanced Sterilization Products | Vapor sterilization using inorganic hydrogen peroxide complexes |
US6123811A (en) * | 1998-12-14 | 2000-09-26 | Ethicon, Inc. | Method of manufacturing aqueous paper pulp for water soluble packages |
US7282273B2 (en) * | 2005-10-26 | 2007-10-16 | Polymer Ventures, Inc. | Grease resistance and water resistance compositions and methods |
US20080003384A1 (en) * | 2006-06-29 | 2008-01-03 | Polymer Ventures, Inc. | Multi-layer coatings to increase water and grease resistance of porous materials and materials having such protection |
US20090098303A1 (en) * | 2007-10-15 | 2009-04-16 | Polymer Ventures, Inc. | Coatings to increase water and grease resistance of porous materials and materials having such protection |
US20110220126A1 (en) * | 2010-03-11 | 2011-09-15 | Lebrette Laurent | Biodegradable medical material |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2268674A (en) * | 1939-09-09 | 1942-01-06 | Richards Chemical Works Inc | Process for softening paper |
NL124069C (fr) * | 1959-03-13 | 1900-01-01 | ||
US4207367A (en) * | 1970-03-30 | 1980-06-10 | Scott Paper Company | Nonwoven fabric |
US4025354A (en) * | 1973-05-08 | 1977-05-24 | Plasmine Corporation | Urea containing sizing compositions |
US3916058A (en) * | 1973-06-25 | 1975-10-28 | Nalco Chemical Co | Method of treating paper and textiles with organically modified sio' 2 'aquasols |
US4247318A (en) * | 1979-01-30 | 1981-01-27 | E. I. Du Pont De Nemours And Company | Process for making security paper from film-fibril sheets |
US4235657A (en) * | 1979-02-12 | 1980-11-25 | Kimberly Clark Corporation | Melt transfer web |
DE3111936A1 (de) * | 1981-03-26 | 1982-10-07 | Cassella Ag, 6000 Frankfurt | Verfestigte gebilde aus textilen materialien |
DE3325826A1 (de) * | 1983-07-18 | 1985-01-31 | Dr. Werner Freyberg Chemische Fabrik Delitia Nachf., 6941 Laudenbach | Beutel zur aufnahme ausgasungsfaehiger schaedlingsbekaempfungsmittel |
FR2642430B1 (fr) * | 1989-01-10 | 1991-05-17 | Hoechst France | Nouvelles resines aminoplastes destinees a l'ennoblissement des fibres cellulosiques et leur application |
-
1989
- 1989-12-22 FR FR8917147A patent/FR2656346B1/fr not_active Expired - Fee Related
-
1990
- 1990-01-24 US US07/469,391 patent/US5180614A/en not_active Expired - Fee Related
- 1990-12-21 EP EP91901826A patent/EP0506807B1/fr not_active Expired - Lifetime
- 1990-12-21 WO PCT/FR1990/000940 patent/WO1991010011A1/fr active IP Right Grant
- 1990-12-21 AT AT91901826T patent/ATE166404T1/de not_active IP Right Cessation
- 1990-12-21 DE DE69032327T patent/DE69032327D1/de not_active Expired - Lifetime
- 1990-12-21 AU AU70538/91A patent/AU7053891A/en not_active Abandoned
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10272639B2 (en) | 2015-03-23 | 2019-04-30 | Emd Millipore Corporation | Abrasion resistant film for biocontainers |
US10675836B2 (en) | 2015-03-23 | 2020-06-09 | Emd Millipore Corporation | Abrasion resistant film for biocontainers |
US11110684B2 (en) | 2015-03-23 | 2021-09-07 | Emd Millipore Corporation | Abrasion resistant film for biocontainers |
Also Published As
Publication number | Publication date |
---|---|
US5180614A (en) | 1993-01-19 |
WO1991010011A1 (fr) | 1991-07-11 |
FR2656346B1 (fr) | 1992-04-10 |
DE69032327D1 (de) | 1998-06-25 |
EP0506807A1 (fr) | 1992-10-07 |
ATE166404T1 (de) | 1998-06-15 |
FR2656346A1 (fr) | 1991-06-28 |
AU7053891A (en) | 1991-07-24 |
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