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1. (WO2019064121) POLYMERIC FOAM LAYER AND METHODS OF MAKING THE SAME
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2019/064121 International Application No.: PCT/IB2018/057122
Publication Date: 04.04.2019 International Filing Date: 17.09.2018
IPC:
B29C 44/28 (2006.01) ,B29C 44/34 (2006.01) ,B29C 44/50 (2006.01) ,B29C 59/04 (2006.01) ,B29C 44/44 (2006.01) ,C08J 9/00 (2006.01) ,B24B 37/00 (2012.01)
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
44
Shaping by internal pressure generated in the material, e.g. swelling, foaming
20
for articles of indefinite length
28
Expanding the moulding material on continuous moving surfaces
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
44
Shaping by internal pressure generated in the material, e.g. swelling, foaming
34
Component parts, details or accessories; Auxiliary operations
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
44
Shaping by internal pressure generated in the material, e.g. swelling, foaming
34
Component parts, details or accessories; Auxiliary operations
36
Feeding the material to be shaped
46
into an open space or onto moving surfaces, i.e. to make articles of indefinite length
50
using pressure difference, e.g. by extrusion, by spraying
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
59
Surface shaping, e.g. embossing; Apparatus therefor
02
by mechanical means, e.g. pressing
04
using rollers or endless belts
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
44
Shaping by internal pressure generated in the material, e.g. swelling, foaming
34
Component parts, details or accessories; Auxiliary operations
36
Feeding the material to be shaped
38
into a closed space, i.e. to make articles of definite length
44
in the form of expandable particles or beads
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
9
Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
B PERFORMING OPERATIONS; TRANSPORTING
24
GRINDING; POLISHING
B
MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
37
Lapping machines or devices; Accessories
Applicants:
3M INNOVATIVE PROPERTIES COMPANY [US/US]; 3M Center Post Office Box 33427 Saint Paul, Minnesota 55133-3427, US
Inventors:
SLAMA, David F.; US
ANTILA, Garth V.; US
HANSEN, Brent R.; US
HANSCHEN, Thomas P.; US
JENNEN, Jay M.; US
KALISH, Jeffrey P.; US
LEHUU, Duy K.; US
MCNULTY, Jason D.; US
MEREE, Caitlin E.; US
RULE, Joseph D.; US
Agent:
ALLEN, Gregory D.,; US
BLANK, Colene H.,; US
HARTS, Dean M. ,; US
LEVINSON, Eric D.,; US
MAKI, Eloise J.,; US
NOWAK, Sandra K.,; US
OLSON, Peter L.,; US
RHODES, Kevin H.; US
RINGSRED, Ted K.,; US
Priority Data:
62/565,77329.09.2017US
Title (EN) POLYMERIC FOAM LAYER AND METHODS OF MAKING THE SAME
(FR) COUCHE DE MOUSSE POLYMÈRE ET PROCÉDÉS DE FABRICATION ASSOCIÉS
Abstract:
(EN) Polymeric foam layer having a thickness up to 25,700 micrometers, having first and second opposed major surfaces, and comprising foam features extending from or into the first major surface by at least 100 micrometers, and having a Tg in a range from -125°C to 150°C, wherein the first and second opposed major surfaces are free of exposed internal porous cells (i.e., less than 10 percent of the surface area of each of the first and second major surface has any exposed porous cells) and wherein at least 40 percent by area of each major surface has an as-cured surface; and methods of making the same. Exemplary uses of polymeric foam layers described herein including a finishing pad for silicon wafers and vibration damping.
(FR) La présente invention concerne une couche de mousse polymère ayant une épaisseur pouvant atteindre jusqu'à 25 700 micromètres, ayant des première et seconde surfaces principales opposées, et comprenant des éléments de mousse s'étendant à partir de ou dans la première surface principale d'au moins 100 micromètres, et ayant une Tg dans une plage de -125 °C à 150 °C, les première et seconde surfaces principales opposées étant exemptes de cellules poreuses internes exposées (en d'autres termes, moins de 10 % de la surface de chacune des première et seconde surfaces principales ayant des cellules poreuses exposées) et au moins 40 % en surface de chaque surface principale ayant une surface telle que durcie. L'invention concerne également un procédé de fabrication associé. Des exemples d'utilisations des couches de mousse polymère selon la présente invention comprennent un patin de polissage pour tranches de silicium et un amortisseur de vibrations.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)