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1. (WO1993007197) SULFONATED POLYESTERS AND THEIR USE IN COMPOSTABLE PRODUCTS SUCH AS DISPOSABLE DIAPERS
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/1993/007197 International Application No.: PCT/US1992/008171
Publication Date: 15.04.1993 International Filing Date: 01.10.1992
Chapter 2 Demand Filed: 07.04.1993
IPC:
A61F 13/15 (2006.01) ,A61L 15/26 (2006.01) ,A61L 15/62 (2006.01) ,C08G 63/672 (2006.01) ,C08G 63/688 (2006.01) ,C08J 5/18 (2006.01) ,D01F 6/86 (2006.01)
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
F
FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
13
Bandages or dressings; Absorbent pads
15
Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
L
METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
15
Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
16
Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
22
containing macromolecular materials
26
Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives thereof
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
L
METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
15
Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
16
Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
42
Use of materials characterised by their function or physical properties
62
Hydrosoluble or hydrodegradable materials
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
63
Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
66
Polyesters containing oxygen in the form of ether groups
668
derived from polycarboxylic acids and polyhydroxy compounds
672
Dicarboxylic acids and dihydroxy compounds
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
63
Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
68
Polyesters containing atoms other than carbon, hydrogen, and oxygen
688
containing sulfur
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
J
WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
5
Manufacture of articles or shaped materials containing macromolecular substances
18
Manufacture of films or sheets
D TEXTILES; PAPER
01
NATURAL OR ARTIFICIAL THREADS OR FIBRES; SPINNING
F
CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES, OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
6
Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
78
from copolycondensation products
86
from polyetheresters
Applicants:
E.I. DU PONT DE NEMOURS AND COMPANY [US/US]; 1007 Market Street Wilmington, DE 19898, US
Inventors:
GALLAGHER, Francis, Glenn; US
HAMILTON, Cathy, Jane; US
HANSEN, Steven, Michael; US
SHIN, Hyunkook; US
TIETZ, Raymond, Frank; US
Agent:
HIGGS, W., Victor ; E.I. du Pont de Nemours and Company Legal/Patent Records Center 1007 Market Street Wilmington, DE 19898, US
Priority Data:
07/771,01901.10.1991US
07/834,79213.02.1992US
Title (EN) SULFONATED POLYESTERS AND THEIR USE IN COMPOSTABLE PRODUCTS SUCH AS DISPOSABLE DIAPERS
(FR) POLYESTERS SULFONES ET UTILISATION DE CES DERNIERS DANS DES PRODUITS POUVANT ETRE TRANSFORMES EN COMPOST TELS QUE DES COUCHES JETABLES
Abstract:
(EN) The invention provides novel polyesters, fibers and films, nonwovens from the fibers and disposable products of the polyesters such as diapers. The products are degradable under the conditions typically existing in waste composting processes, have low ingredient costs and yet provide strength and toughness properties adequate for end uses such as in disposable diapers. The polyesters are based upon a polyalkylene terephthalate copolymerized with hexahydroterephthalic acid, and containing di- or triethylene glycol and alkali metal or alkaline earth metal sulfo groups, such as a metal 5-sulfoisophthalic acid derivative.
(FR) Cette invention concerne de nouveaux polyesters, des fibres et des films, et des non-tissés fabriqués à partir des fibres ainsi que des produits jetables fabriqués avec les polyesters, tels que des couches. Ces produits sont dégradables dans les conditions spécifiques existant pendant la réalisation du compostage des déchets, nécessitent un faible coût pour ce qui concerne les ingrédients et possèdent cependant les propriétés de résistance et de solidité nécessaires à l'utilisation finale comme c'est le cas pour les couches jetables. Les polyesters sont principalement constitués d'un téréphtalate de polyalkylène copolymérisé avec de l'acide hexahydrotéréphtalique et renferment du glycol di- ou tri-éthylène et des groupes sulfo de métaux alcalino-terreux et de métaux alcalins, tels qu'un dérivé métallique d'acide 5-sulfo-isophtalique.
Designated States: AU, BR, CA, JP, KR
European Patent Office (EPO) (AT, BE, CH, DE, DK, ES, FR, GB, GR, IE, IT, LU, MC, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)