US3630348A - Package comprising paper containing a formaldehyde releasing thermosetting resin - Google Patents

Package comprising paper containing a formaldehyde releasing thermosetting resin Download PDF

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Publication number
US3630348A
US3630348A US745308A US3630348DA US3630348A US 3630348 A US3630348 A US 3630348A US 745308 A US745308 A US 745308A US 3630348D A US3630348D A US 3630348DA US 3630348 A US3630348 A US 3630348A
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US
United States
Prior art keywords
package
formaldehyde
resin
sheet
paper
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
Application number
US745308A
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English (en)
Inventor
Ronald L Benson
Christo Antonio
John H Brewer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fitchburg Paper Co
Original Assignee
Fitchburg Paper Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fitchburg Paper Co filed Critical Fitchburg Paper Co
Application granted granted Critical
Publication of US3630348A publication Critical patent/US3630348A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/36—Biocidal agents, e.g. fungicidal, bactericidal, insecticidal agents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B50/00—Containers, covers, furniture or holders specially adapted for surgical or diagnostic appliances or instruments, e.g. sterile covers
    • A61B50/30—Containers specially adapted for packaging, protecting, dispensing, collecting or disposing of surgical or diagnostic appliances or instruments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/002—Packages specially adapted therefor, e.g. for syringes or needles, kits for diabetics
    • 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
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31942—Of aldehyde or ketone condensation product
    • Y10T428/31949—Next to cellulosic
    • Y10T428/31964—Paper

Definitions

  • a paper is coated or has internally incorporated therein an uncured formaldehyde containing thermosetting resin.
  • the resin does not contain free formaldehyde but many CH OH groups which are capable of splitting off as free formaldehyde on heating and/or aging: the reaction is catalyzed by acids or bases. Since it is desired that formaldehyde be released over extended periods such catalyzation is undesireable and accordingly, the pH of the sheet is adjusted to a range between 4 and 9.'
  • This paper is then formed into a package with a surgical instrument placed therein.
  • the sealed package is then subjected to a heat treatment so as to release the formaldehyde.
  • the heat treatment releases sufficient formaldehyde so as to kill the bacteria in the package but it is so controlled as to not completely free all the formaldehyde present.
  • the resin continues to gradually cure with aging due to aforementioned pH control so that the formaldehyde remaining linked with the resin is released continuously until the package is broken for use purposes.
  • a vapor-proof coating such as polyethylene, is placed on the side of the sheet which forms the outside of the package so as to seal the sheet and prevent release of the gas therethrough.
  • the formaldehyde containing paper need not be made into a package.
  • the paper can be incorporated within an aluminum foil package, with the paper serving to guard or encompass the surgical instrument so as to inhibit the penetration of the surgical instrument into the aluminum foil, while simultaneously sterilizing the interior of the package.
  • FIGURE is a schematic diagram showing the parts broken away, illustrating a package made in accordance with the present invention.
  • thermosetting resin such as phenol formaldehyde, urea formaldehyde, melamine formaldehyde, etc.
  • phenol formaldehyde, urea formaldehyde, melamine formaldehyde, etc. which is uncured and capable of releasing formaldehyde upon subsequent polymerization may be employed.
  • these resins are or contain monomers which are mono, di and tri methylol compounds with phenol, urea and melamine. There monomers condense to give ether linkages which decompose to methylene linkages with subsequent loss of formaldehyde.
  • the resin need not be completely uncured. If, e.g., the resin is 80 percent cured, there is still some formaldehyde available for liberation upon heating or aging. If such a partially cured resin was employed in sufiicient quantity, applicants purpose would be served.
  • an uncured resin is meant to include such partially cured resin provided such resins are capable of liberating formaldehyde upon subsequent aging and heating.
  • the amount of resin incorporated in or on the supporting sheet (which will subsequently constitute an insert or wall of the package) will depend upon the state of cure of the resin. In addition, the amount of resin required will vary depending on the needs of a particular application. In view of these variables, the amount of resin can be varied over a wide range from 0.5 percent to percent by weight of the supporting sheet.
  • the formaldehyde containing uncured resin may be incorporated internally into a sheet of paper by addition during paper manufacture or it may be coated onto a sheet by any conventional coating operation such as reverse roll, wire rod, air knife, etc.
  • the resin will cure and release formaldehyde as a result of aging and heat.
  • the pH is adjusted by the addition of caustic to a pH of 7 at the beater stage or head box prior to paper formation.
  • a buffer is added at the size press so as to maintain the neutral condition of the finished product. Paper has inherent acidity due to the fiber and it is quite difficult to fully neutralize this by caustic addition at heater or head box stage.
  • the paper used may be of conventional type used in packaging surgical instruments, such as those made from bleached sulphite and other bleached pulps which impart the required strength and porosity requirements to such a sheet.
  • the pulp is beaten and refined, ready for deposit on the wire of a conventional paper machine.
  • a buffering agent is added to the sheet so as to maintain the neutral condition of the finished product.
  • the amount of buffer should be 0.2 percent to 0.5 percent based on the weight of fiber.
  • the paper has inherent acidity due to the alum on the fiber and it is impossible to fully neutralize this during the caustic addition step at the head box.
  • the buffering agent serves to neutralize any free acid radicals that might be present and were not neutralized during the addition of the caustic at the head box.
  • Conventional paper making buffers can be employed such as hydrated sodium borate, potassium-hydrogen-phosphate, acetates, etc.
  • the resin may alternatively be applied by any conventional coating operation such as reverse roll, wire rod, air knife, etc.
  • the resin is applied in aqueous or solvent system depending on the particular resin used.
  • the resin is applied in a highly dilute solution, generally not greater than l0 percent concentration so as to inhibit cure.
  • the resin is applied in sufficient quantities so as to meet the requirements of the particular intended end use.
  • the resin impregnated paper as above prepared can be incorporated within a vapor-proof package, such as an aluminum foil package, and subjected to controlled heating so as to hasten cure, and release sufficient formaldehyde to kill bacteria present in the package.
  • a vapor-proof package such as an aluminum foil package
  • the surface of the sheet adapted to be on the outside of the package is provided with a vapor-proof coating.
  • the coating may comprise any resin which has a low-vapor transmission level such as polyethylene, polypropylene, polyvinylidene chloride, etc.
  • a hot melt coating may be applied comprised, e.g., of a high molecular weight ethylene-vinyl acetate copolymer combined with petroleum waxes.
  • a package is prepared in accordance with the present invention with sheets 1 and 3, placed in face to face relation.
  • Sheets 1 and 3 have an uncured formaldehyde containing thermosetting resin incorporated therein by the procedure above described. Sheets 1 and 3 are assembled by heat sealing. The outer surfaces 5 and 7 of the sheets I and 3 have a vapor-proof coating so as to seal the formaldehyde within the package.
  • An instrument 9 is placed on top of sheet 3 and a heat seal die is brought into contact with the package causing the edges of sheets 1 and 3 to fuse together.
  • the package After assembly, the package is then placed in a heated chamber for 1 hour to several days at a temperature between 100-200 F. Formaldehyde is released as the resin cures and it is retained in the package by virtue of the vapor-proof coatmg.
  • EXAMPLE I A sheet of paper having a basis weight of 45 lbs. per ream and made of a pulp furnish comprising a mixture of bleached softwoods and hardwoods was impregnated with a 6 percent aqueous solution of trimethylol melamine (monomer which when polymerized forms melamine formaldehyde). The solution was applied through a laboratory size press at room temperature and then dried in a hot air oven at a temperature of 100 F. The dried sheet contained 5 percent of melamine for maldehyde on a dry fiber basis and had a pH of 4.
  • EXAMPLE ll The same procedure was followed as in example I except that the impregnating conditions were so adjusted that the sheet contained 3.5 percent of melamine formaldehyde on a dry fiber basis. In addition, before drying, the sheet was impregnated with a buffer solution comprising hydrated solium borate so as to adjust the pH of the sheet to 7.
  • EXAMPLE Ill The same procedure was followed as in example I except that the impregnating conditions were so adjusted that the sheet contained 3 percent of melamine formaldehyde on a dry fiber basis. In addition, a vapor-proof coating was then applied to one surface of the sheet comprised of water resistant wax emulsion.
  • the packages were then placed m a hot air oven at 140 F.
  • a package constructed in accordance with the present invention functions to effectively destroy bacteria with a surgical instrument containing package. It will also be noted that pH adjustment to the neutral range and the application of a vapor-proof coating substantially increases the kill.
  • a package said package having paper wall means comprising a thermosetting resin which is no more than percent cured having a substantial quantity of CH OH groups capable of releasing free formaldehyde on heating, said wall means having a pH in the range of 4 to 9, the exterior surface of said package having a vapor transmission proof coating thereon, said resin being present in an amount ranging from 0.5 to 90 percent by weight of said wall means.
  • a package said package containing an article, a sheet of paper material being wrapped about said article, said sheet of paper material containing a thermosetting resin which is no more than 90 percent cured comprising a substantial quantity of CH OH groups capable of releasing free formaldehyde on heating, said sheet of material having a pH in the range of 4 to 9, said package having wall means, said wall means .having a vapor transmission proof coating thereon, said resin being present in an amount ranging from 0.5 to 90 percent by weight of said wall means.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Veterinary Medicine (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Public Health (AREA)
  • Pest Control & Pesticides (AREA)
  • Diabetes (AREA)
  • Hematology (AREA)
  • Anesthesiology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Vascular Medicine (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Paper (AREA)
  • Packages (AREA)
  • Laminated Bodies (AREA)
US745308A 1968-07-16 1968-07-16 Package comprising paper containing a formaldehyde releasing thermosetting resin Expired - Lifetime US3630348A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US74530868A 1968-07-16 1968-07-16

Publications (1)

Publication Number Publication Date
US3630348A true US3630348A (en) 1971-12-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
US745308A Expired - Lifetime US3630348A (en) 1968-07-16 1968-07-16 Package comprising paper containing a formaldehyde releasing thermosetting resin

Country Status (10)

Country Link
US (1) US3630348A (de)
BE (1) BE736184A (de)
BR (1) BR6910755D0 (de)
CH (1) CH506421A (de)
DE (1) DE1935472B2 (de)
DK (1) DK126832B (de)
FR (1) FR2013068A1 (de)
GB (1) GB1270584A (de)
NL (1) NL164627C (de)
SE (1) SE366355B (de)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5030693A (de) * 1973-04-05 1975-03-26
US3942634A (en) * 1974-07-19 1976-03-09 Becton, Dickinson & Company Two compartment sterilant package
US4050576A (en) * 1976-08-17 1977-09-27 Becton, Dickinson And Company Polymeric sterilant assembly
US4144309A (en) * 1977-06-09 1979-03-13 Alza Corporation Device for dispensing microcide formed when device is in environment of use
US4445889A (en) * 1977-06-09 1984-05-01 Alza Corporation Method for delivering an agent with biocidal activity in a body fluid receiving container
US4460367A (en) * 1977-06-09 1984-07-17 Alza Corporation Device containing biocide producing paraformalde and an acid
US4529398A (en) * 1977-06-09 1985-07-16 Wong Patrick S Method for preventing contamination of catheter and drainage receptacle
US4601880A (en) * 1977-06-09 1986-07-22 Alza Corporation Urine container with biocidal activity
US5422068A (en) * 1994-01-05 1995-06-06 Shalaby; Shalaby W. Radiochemical sterilization
US20030168365A1 (en) * 2002-01-28 2003-09-11 Kaern Viggo Aaberg Package
AU2010234778B2 (en) * 2009-03-31 2015-11-05 Ethicon, Llc Packaged antimicrobial medical device and method of preparing same
US11707272B2 (en) 2012-04-06 2023-07-25 Cilag Gmbh International Packaged antimicrobial medical device having improved shelf life and method of preparing same

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4559103A (en) * 1982-08-05 1985-12-17 Honshu Seishi Kabushiki Kaisha Packaging paper and packaging material for packaging metallic material and method of producing the same
US5048684A (en) * 1990-02-01 1991-09-17 Becton, Dickinson And Company Compact syringe and catheter package

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2686744A (en) * 1951-10-11 1954-08-17 American Viscose Corp Heat sealable wrapping material
US2979410A (en) * 1957-05-13 1961-04-11 Tee Pak Inc Food package and packaging film therefor
US3044884A (en) * 1960-11-07 1962-07-17 Shell Oil Co Preservation of foods
US3052553A (en) * 1959-07-01 1962-09-04 Olin Mathieson Chemical Corp. Transparent food wrapper
US3084793A (en) * 1959-07-27 1963-04-09 Crown Zellerbach Corp Sterile package and method
US3301752A (en) * 1965-09-03 1967-01-31 George R Bubash Vaporizable biocidal compositions
US3310364A (en) * 1961-12-06 1967-03-21 Gennep Papierfab Nv Method of sterilizing hygienic paper ware
US3342613A (en) * 1963-09-09 1967-09-19 Owens Illinois Inc Construction of a blanket for moisturepack poultry shipping system
US3410392A (en) * 1964-08-21 1968-11-12 William A. Hermanson Composite side wall and resealable sealed package containing corrosion preventive means
US3431162A (en) * 1965-04-06 1969-03-04 Weyerhaeuser Co Corrugated containerboard and the process of treating the same
US3433577A (en) * 1964-08-19 1969-03-18 Owens Illinois Inc Vapor phase corrosion inhibition
US3458465A (en) * 1965-03-25 1969-07-29 Henkel & Cie Gmbh Laminate,binding solution and process for preparation of laminate
US3494726A (en) * 1966-12-27 1970-02-10 Becton Dickinson Co Sterilizing method and sterilizing package

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2686744A (en) * 1951-10-11 1954-08-17 American Viscose Corp Heat sealable wrapping material
US2979410A (en) * 1957-05-13 1961-04-11 Tee Pak Inc Food package and packaging film therefor
US3052553A (en) * 1959-07-01 1962-09-04 Olin Mathieson Chemical Corp. Transparent food wrapper
US3084793A (en) * 1959-07-27 1963-04-09 Crown Zellerbach Corp Sterile package and method
US3044884A (en) * 1960-11-07 1962-07-17 Shell Oil Co Preservation of foods
US3310364A (en) * 1961-12-06 1967-03-21 Gennep Papierfab Nv Method of sterilizing hygienic paper ware
US3342613A (en) * 1963-09-09 1967-09-19 Owens Illinois Inc Construction of a blanket for moisturepack poultry shipping system
US3433577A (en) * 1964-08-19 1969-03-18 Owens Illinois Inc Vapor phase corrosion inhibition
US3410392A (en) * 1964-08-21 1968-11-12 William A. Hermanson Composite side wall and resealable sealed package containing corrosion preventive means
US3458465A (en) * 1965-03-25 1969-07-29 Henkel & Cie Gmbh Laminate,binding solution and process for preparation of laminate
US3431162A (en) * 1965-04-06 1969-03-04 Weyerhaeuser Co Corrugated containerboard and the process of treating the same
US3301752A (en) * 1965-09-03 1967-01-31 George R Bubash Vaporizable biocidal compositions
US3494726A (en) * 1966-12-27 1970-02-10 Becton Dickinson Co Sterilizing method and sterilizing package

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5030693A (de) * 1973-04-05 1975-03-26
US3923154A (en) * 1973-04-05 1975-12-02 Litton Business Systems Inc Sterilant package
US3942634A (en) * 1974-07-19 1976-03-09 Becton, Dickinson & Company Two compartment sterilant package
US4050576A (en) * 1976-08-17 1977-09-27 Becton, Dickinson And Company Polymeric sterilant assembly
US4144309A (en) * 1977-06-09 1979-03-13 Alza Corporation Device for dispensing microcide formed when device is in environment of use
US4445889A (en) * 1977-06-09 1984-05-01 Alza Corporation Method for delivering an agent with biocidal activity in a body fluid receiving container
US4460367A (en) * 1977-06-09 1984-07-17 Alza Corporation Device containing biocide producing paraformalde and an acid
US4529398A (en) * 1977-06-09 1985-07-16 Wong Patrick S Method for preventing contamination of catheter and drainage receptacle
US4601880A (en) * 1977-06-09 1986-07-22 Alza Corporation Urine container with biocidal activity
US5422068A (en) * 1994-01-05 1995-06-06 Shalaby; Shalaby W. Radiochemical sterilization
US20030168365A1 (en) * 2002-01-28 2003-09-11 Kaern Viggo Aaberg Package
US7770728B2 (en) * 2002-01-28 2010-08-10 Coloplast A/S Package
AU2010234778B2 (en) * 2009-03-31 2015-11-05 Ethicon, Llc Packaged antimicrobial medical device and method of preparing same
US11707272B2 (en) 2012-04-06 2023-07-25 Cilag Gmbh International Packaged antimicrobial medical device having improved shelf life and method of preparing same

Also Published As

Publication number Publication date
SE366355B (de) 1974-04-22
NL164627B (nl) 1980-08-15
DE1935472A1 (de) 1970-01-22
NL164627C (nl) 1981-01-15
DE1935472C3 (de) 1973-10-25
GB1270584A (en) 1972-04-12
NL6910922A (de) 1970-01-20
CH506421A (de) 1971-04-30
FR2013068A1 (de) 1970-03-27
BE736184A (de) 1969-12-31
DE1935472B2 (de) 1973-03-29
BR6910755D0 (pt) 1973-06-07
DK126832B (da) 1973-08-27

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