Reusable elastic adhesive sheet redetachable without residue...

Details Reusable elastic adhesive sheet redetachable without residue... Reusable elastic adhesive sheet redetachable without residue...

2007-02-13

2007-02-13

Ahmad, Nasser (Department: 1772)

Stock material or miscellaneous articles

Layer or component removable to expose adhesive

C427S208400, C428S041700, C428S192000, C428S194000, C428S343000, C428S354000, C428S3550RA, C428S3550EN, C528S044000

Reexamination Certificate

active

10813195

ABSTRACT:
A single-sidedly or double-sidedly pressure-sensitively adhesive, elastic adhesive sheet comprising at least one layer of a pressure-sensitive adhesive, and having a maximum stretchability of more than 200% and a recovery of more than 60% after stretching to ⅔ of its maximum elongation, said pressure-sensitive adhesive (PSA) being based on a chemically crosslinked polyurethane, wherein the starting materials for the chemically crosslinked polyurethane include at least one isocyanate-reactive substance having a functionality of more than 2.0, in an amount of at least 5% by weight, based on the weight of the polyurethane composition, where the molecular weight of at least one of the starting materials used to form the polyurethane is being greater than or equal to 1000, at least one difunctional polyisocyanates are being used to form the polyurethane, and the ratio of maximum tensile stress to stripping stress is of said elastic adhesive sheet being more than 1.2, and the tensile stress at an elongation of 200% is being not more than 2.0 N/mm.sup.2.

REFERENCES:
patent: 4024312 (1977-05-01), Korpman
patent: 4587152 (1986-05-01), Gleichenhagen et al.
patent: 5102714 (1992-04-01), Mobley et al.
patent: 5354597 (1994-10-01), Capik et al.
patent: 5491012 (1996-02-01), Lühmann et al.
patent: 5626931 (1997-05-01), Lühmann
patent: 5626932 (1997-05-01), Lühmann et al.
patent: 5693584 (1997-12-01), Le-Khac et al.
patent: 5712216 (1998-01-01), Le-Khac et al.
patent: 5897949 (1999-04-01), Lühmann et al.
patent: 5925459 (1999-07-01), Zimmermann et al.
patent: 5952261 (1999-09-01), Combs
patent: 6004665 (1999-12-01), Lühmann et al.
patent: 6040028 (2000-03-01), Cline et al.
patent: 6106953 (2000-08-01), Zimmermann et al.
patent: 6280840 (2001-08-01), Lühmann et al.
patent: 6284378 (2001-09-01), Junghans et al.
patent: 6372335 (2002-04-01), Lühmann et al.
patent: 6395389 (2002-05-01), Lühmann et al.
patent: 6402875 (2002-06-01), Lühmann et al.
patent: 6544639 (2003-04-01), Lühmann et al.
patent: 6680096 (2004-01-01), Lühmann et al.
patent: 2003/0054164 (2003-03-01), Zimmermann et al.
patent: 2003/0059607 (2003-03-01), Schumann et al.
patent: 2004/0038040 (2004-02-01), Schumann et al.
patent: 2005/0019560 (2005-01-01), Hesse et al.
patent: 2005/0019587 (2005-01-01), Luhmann et al.
patent: 2005/0027091 (2005-02-01), Luhmann et al.
patent: 33 31 061 (1985-03-01), None
patent: 44 28 587 (1996-06-01), None
patent: 44 31 914 (1996-10-01), None
patent: 195 31 696 (1997-03-01), None
patent: 197 08 366 (1998-01-01), None
patent: 196 49 636 (1998-06-01), None
patent: 196 49 727 (1998-06-01), None
patent: 196 49 728 (1998-06-01), None
patent: 196 49 729 (1998-06-01), None
patent: 198 20 858 (1999-11-01), None
patent: 42 22 849 (2000-02-01), None
patent: 198 42 864 (2000-03-01), None
patent: 198 42 865 (2000-03-01), None
patent: 199 38 693 (2001-02-01), None
patent: 199 55 856 (2001-09-01), None
patent: 100 29 489 (2002-03-01), None
patent: 100 55 942 (2002-06-01), None
patent: 0 149 135 (1985-07-01), None
patent: 0 328 925 (1989-08-01), None
patent: 0 761 793 (1997-03-01), None
patent: 1 249 480 (2002-10-01), None
patent: 1 285 955 (2003-02-01), None
patent: 1 425 500 (1976-02-01), None
patent: 01-174581 (1989-07-01), None
patent: 01-275687 (1989-11-01), None
patent: 06 279 741 (1994-10-01), None
patent: 08 188 755 (1996-07-01), None
patent: WO 92/11332 (1992-07-01), None
patent: WO 92/11333 (1992-07-01), None
patent: WO 95/06691 (1995-03-01), None
patent: WO 96/18701 (1996-06-01), None
patent: WO 97/07172 (1997-02-01), None
patent: WO 98/03601 (1998-01-01), None
patent: WO 99/31193 (1999-06-01), None
patent: WO 99/51657 (1999-10-01), None
patent: WO 99/51661 (1999-10-01), None
patent: WO 99/56874 (1999-11-01), None
patent: WO 99/59719 (1999-11-01), None
patent: WO 99/64152 (1999-12-01), None
patent: WO 99/64493 (1999-12-01), None
patent: WO 01/62818 (2001-08-01), None
Specification—U.S. Appl. No. 09/160,777, filed Sep. 24, 1998, English language counterpart to DE 195 31 696.
Geachter and Müller,Taschenbuch der Kunststoff-Additive, Munich, 1979.
Kirk-Othmer,Encyclopedia of Chemical Technology(3rd), vol. 23, 615 to 627, John Wiley & Sons, New York (1983).
Encyclopedia of Polymer Science and Technology, vol. 14, 125 to 148, John Wiley & Sons, New York (1971).
Ullmann,Encyklopadie der Technischen Chemie(4th), Band 8; 21; 15, 254ff, 676ff, Verlag Chemie GmbH, Weinheim/Bergstrasse (1974).

Affiliated with

Also associated with

Rating

Reusable elastic adhesive sheet redetachable without residue... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Reusable elastic adhesive sheet redetachable without residue..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reusable elastic adhesive sheet redetachable without residue... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3815782