POROUS, ABSORBENT, POLYMERIC MACROSTRUCTURES AND METHODS OF MAKING THE SAME

• Main Authors: BERG, CHARLES JOHN, LAHRMAN, FRANK HENRY, ROE, DONALD CARROLL
• Format: Patent
• Language: English; Korean
• Published: 15.06.1999
• Edition: 6
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; BANDAGES, DRESSINGS OR ABSORBENT PADS; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; FILTERS IMPLANTABLE INTO BLOOD VESSELS; FIRST-AID KITS; FOMENTATION; GENERAL PROCESSES OF COMPOUNDING; HUMAN NECESSITIES; HYGIENE; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES; MEDICAL OR VETERINARY SCIENCE; METALLURGY; METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; PERFORMING OPERATIONS; PROSTHESES; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; TREATMENT OR PROTECTION OF EYES OR EARS; WORKING-UP

본 발명은 약 10.0㎣ 이상의 경계 건조부피(Circumscribed dry volume)를 갖는 입자간 가교결합된 응집체를 포함하는 다공성의 흡수성 중합체 거대구조물(52)에 관한 것이다. 입자간 가교결합된 응집체는 실질적으로 수불용성인 흡수성 하이드로 겔-형성 중합체 물질의 다수의 전구체 입자; 및 전구체 입자의 중합체 물질과 반응하여 전구체 입자사이에 가교결합을 형성하는 입자간 가교결합제를 포함한다. 전구체 입자의 입상성질 때문에, 거대구조물(52)는 인접한 전구체 입자사이의 공극을 갖는다. 이 공극은 거대구조물이 액체 투과성이도록 상호연통 체널에 의해 상호연결되어 있다. Absorbent polymeric macrostructures that are porous and comprise an interparticle crosslinked aggregate having a circumscribed dry volume greater than about 10.0 mm3. The interparticle crosslinked aggregrate comprises a multiplicity of precursor particles of substantially water-insoluble, absorbent, hydrogel-forming, polymer material; and an interparticle crosslinking agent reacted with the polymer material of the precursor particles to form crosslink bonds between the precursor particles. Because of the particulate nature of the precursor particles, the macrostructure has pores between adjacent precursor particles. The pores are interconnected by intercommunicating channels such that the macrostructure is liquid permeable.