Search International and National Patent Collections
Some content of this application is unavailable at the moment.
If this situation persists, please contact us atFeedback&Contact
1. (WO1991007119) PROCESS FOR HEAT SEALING PACKAGES AND MATERIALS USABLE IN SAID PROCESS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/007119 International Application No.: PCT/US1990/006568
Publication Date: 30.05.1991 International Filing Date: 09.11.1990
Chapter 2 Demand Filed: 03.06.1991
IPC:
A47C 27/08 (2006.01) ,B29C 65/00 (2006.01) ,B29C 65/04 (2006.01)
A HUMAN NECESSITIES
47
FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
C
CHAIRS; SOFAS; BEDS
27
Spring, stuffed or fluid mattresses specially adapted for chairs, beds or sofas
08
Fluid mattresses
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
65
Joining of preformed parts; Apparatus therefor
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
65
Joining of preformed parts; Apparatus therefor
02
by heating, with or without pressure
04
Dielectric heating, e.g. high-frequency welding
Applicants:
ALDEN LABORATORIES, INC. [US/US]; 5455 Spine Road Suite A Boulder, CO 80301, US
Inventors:
DREW, Terrence, M.; US
HANSON, Chris, A.; US
HANSON, Alden, B.; US
Agent:
TOMPKINS, Michael, L. ; Sheridan, Ross & McIntosh One United Bank Center 1700 Lincoln Street 35th Floor Denver, CO 80203, US
Priority Data:
435,08709.11.1989US
Title (EN) PROCESS FOR HEAT SEALING PACKAGES AND MATERIALS USABLE IN SAID PROCESS
(FR) PROCEDE DE SCELLEMENT PAR LA CHALEUR D'EMBALLAGES ET MATERIAUX UTILISABLES DANS LEDIT PROCEDE
Abstract:
(EN) A sealing process for producing clean, contamination-free seals. The process includes the step of incorporating a small amount of polar liquid within the material (12) to be sealed between heat-sealable layers (14, 16). An alternating electromagnetic energy field, such as that produced by a dielectric heating device (18), is applied to the seal area (24). The energy vaporizes the polar liquid, thereby cleaning the seal area (24). Subsequently, the energy causes the resinous layers (14, 16) to seal together, sealing the material (12) within the package. A preferred composition for sealing within the resinous package is also disclosed. The material includes a polar liquid, a surfactant, wax, oil and microbeads. The material is especially suited for producing padding devices.
(FR) Procédé de scellement permettant de produire des scellements propres sans contamination. Le procédé comprend une étape d'incorporation d'une petite quantité de liquide polaire à l'intérieur du matériau (12) à sceller, entre des couches thermosoudables (14, 16). L'on applique un champ d'énergie électromagnétique, tel que celui produit par un dispositif (18) de chauffage diélectrique, à la zone à sceller (24). L'énergie vaporise le liquide polaire, nettoyant ainsi la zone de scellement (24). Par la suite, l'énergie provoque le scellement des couches (14, 16) résineuses et le scellement du matériau (12) à l'intérieur de l'emballage. L'on décrit également une réalisation préférentielle permettant de réaliser le scellement à l'intérieur de l'emballage résineux. Le matériau comprend un liquide polaire, un agent de surface, de la cire, de l'huile et des microbilles. Le matériau convient particulièrement à la production de dispositifs de rembourrage.
Designated States: AT, AU, BB, BG, BR, CA, CH, DE, DK, ES, FI, GB, HU, JP, KP, KR, LK, LU, MC, MG, MW, NL, NO, RO, SD, SE, SU
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CM, GA, ML, MR, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
AU1990067552