Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Of varying cross-sectional area or with intermittent...
Reexamination Certificate
1999-04-09
2001-02-27
Tentoni, Leo B. (Department: 1732)
Plastic and nonmetallic article shaping or treating: processes
Forming continuous or indefinite length work
Of varying cross-sectional area or with intermittent...
C264S171130, C264S286000
Reexamination Certificate
active
06193918
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to processes and equipment for embossing and applying adhesive to thin film webs.
BACKGROUND OF THE INVENTION
Three-dimensional sheet materials which include a thin layer of pressure-sensitive adhesive protected from inadvertent contact, as well as methods and apparatus for manufacturing them, have been developed and are described in detail in commonly-assigned U.S. Pat. No. 5,662,758, issued Sept. 2, 1997 to Hamilton and McGuire, entitled “Composite Material Releasably Sealable to a Target Surface When Pressed Thereagainst and Method of Making”, and U.S. Pat. No. 5,871,607, issued Feb. 16, 1999 to Hamilton and McGuire, entitled “Material Having A Substance Protected by Deformable Standoffs and Method of Making”, and commonly-assigned, co-pending U.S. patent application Ser. No. 08/745,339, filed Nov. 8, 1996 in the names of McGuire, Tweddell, and Hamilton, entitled “Three-Dimensional, Nesting-Resistant Sheet Materials and Method and Apparatus for Making Same”, now U.S. Pat. No. 5,965,235, Ser. No. 08/745,340, filed Nov. 8, 1996 in the names of Hamilton and McGuire, entitled “Improved Storage Wrap Materials”, all of which are hereby incorporated herein by reference.
While the processes and equipment for manufacturing such materials described in these applications/patents are suitable for manufacturing such materials on a comparatively small scale, the nature of the processes and equipment have been found to be rate-limiting by design. Said differently, the maximum speed at which such processes and equipment can be operated to produce such materials is limited by the size or weight of moving components, the rate at which heat can be applied to deformable substrate materials, the rate at which forces can be imparted to the substrate to deform it into the desired configuration, and/or the rate at which adhesive can be applied to the substrate and/or intermediate apparatus elements. The speed at which such processes and apparatus can be operated is a major factor in the economics of producing such materials on a commercial scale.
Accordingly, it would be desirable to provide a process and apparatus suitable for forming such three-dimensional sheet materials and applying adhesive at high speed.
SUMMARY OF THE INVENTION
The present invention provides a process which in a preferred embodiment includes the steps of: (a) applying a hot melt adhesive to a heated roll rotating at an initial tangential speed; (b) milling the adhesive to a reduced thickness and accelerating said adhesive through a series of metering gaps between a plurality of adjacent heated glue rolls; (c) applying the adhesive to a conformable glue application roll rotating at a tangential line speed which is higher than the initial tangential speed; (d) applying the adhesive to a first patterned embossing roll which is engaged with a second patterned embossing roll having a complementary pattern to the first embossing roll, the embossing rolls being heated; (e) passing a web of sheet material between the first and second embossing rolls at the tangential line speed to simultaneously emboss the web and apply the adhesive to the web, such that the adhesive forms an adhesive pattern between embossments; (f) transferring the web from the second embossing roll to the first embossing roll; (g) stripping the web from the first embossing roll; and (h) cooling the web.
REFERENCES:
patent: D. 331665 (1992-12-01), Underhill
patent: D. 373026 (1996-08-01), Delebreau et al.
patent: D. 381810 (1997-08-01), Schultz et al.
patent: 680533 (1901-08-01), Marinier et al.
patent: 690822 (1902-01-01), Avril
patent: 1358891 (1920-11-01), Steedman
patent: 1454364 (1923-05-01), Winchenbaugh et al.
patent: 2054313 (1936-09-01), Bright
patent: 2338749 (1944-01-01), Wilbur
patent: 2681612 (1954-06-01), Reimann
patent: 2838416 (1958-06-01), Babiarz et al.
patent: 2855844 (1958-10-01), Stewart
patent: 2861006 (1958-11-01), Salditt
patent: 3018015 (1962-01-01), Agriss et al.
patent: 3024154 (1962-03-01), Singleton et al.
patent: 3312005 (1967-04-01), McElroy
patent: 3386846 (1968-06-01), Lones
patent: 3484835 (1969-12-01), Trounstine et al.
patent: 3554835 (1971-01-01), Morgan
patent: 3573136 (1971-03-01), Gardner
patent: 3585101 (1971-06-01), Stratton et al.
patent: 3592722 (1971-07-01), Morgan
patent: 3708366 (1973-01-01), Donnelly
patent: 3850095 (1974-11-01), Synder
patent: 3853129 (1974-12-01), Kozak
patent: 3867225 (1975-02-01), Nystrand
patent: 3879330 (1975-04-01), Lustig
patent: 3901237 (1975-08-01), Cepuritis et al.
patent: 3911187 (1975-10-01), Raley
patent: 3937221 (1976-02-01), Tritsch
patent: 3943609 (1976-03-01), Egan, Jr.
patent: 3950480 (1976-04-01), Adams et al.
patent: 3967624 (1976-07-01), Milnamow
patent: 4023570 (1977-05-01), Chinai et al.
patent: 4054697 (1977-10-01), Reed et al.
patent: 4061820 (1977-12-01), Magid et al.
patent: 4067337 (1978-01-01), Ness
patent: 4133152 (1979-01-01), Penrose
patent: 4181752 (1980-01-01), Martens et al.
patent: 4273889 (1981-06-01), Yamazaki et al.
patent: 4303485 (1981-12-01), Levens
patent: 4325768 (1982-04-01), Schultz
patent: 4336804 (1982-06-01), Roeder
patent: 4337772 (1982-07-01), Roeder
patent: 4339088 (1982-07-01), Niedermeyer
patent: 4342314 (1982-08-01), Radel et al.
patent: 4376147 (1983-03-01), Byrne et al.
patent: 4376440 (1983-03-01), Whitehead et al.
patent: 4392897 (1983-07-01), Herrington
patent: 4397905 (1983-08-01), Dettmer et al.
patent: 4404242 (1983-09-01), Squier
patent: 4405666 (1983-09-01), Squier
patent: 4410130 (1983-10-01), Herrington
patent: 4413109 (1983-11-01), Haas
patent: 4460634 (1984-07-01), Hasegawa
patent: 4508256 (1985-04-01), Radel et al.
patent: 4509908 (1985-04-01), Mullane, Jr.
patent: 4514345 (1985-04-01), Johnson et al.
patent: 4519095 (1985-05-01), Clayton
patent: 4528239 (1985-07-01), Trokhan
patent: 4543142 (1985-09-01), Kuepper et al.
patent: 4546029 (1985-10-01), Cancio et al.
patent: 4556595 (1985-12-01), Ochi
patent: 4576850 (1986-03-01), Martens
patent: 4578069 (1986-03-01), Whitehead et al.
patent: 4587152 (1986-05-01), Gleichenhagen et al.
patent: 4612221 (1986-09-01), Biel et al.
patent: 4655761 (1987-04-01), Grube et al.
patent: 4659608 (1987-04-01), Schulz
patent: 4695422 (1987-09-01), Curro et al.
patent: 4699622 (1987-10-01), Toussant et al.
patent: 4743242 (1988-05-01), Grube et al.
patent: 4778644 (1988-10-01), Curro et al.
patent: 4803032 (1989-02-01), Schulz
patent: 4820589 (1989-04-01), Dobreski et al.
patent: 4839216 (1989-06-01), Curro et al.
patent: 4894275 (1990-01-01), Pelzer
patent: 4946527 (1990-08-01), Battrell
patent: 4959265 (1990-09-01), Wood et al.
patent: 5008139 (1991-04-01), Ochi et al.
patent: 5080957 (1992-01-01), Leseman et al.
patent: 5098522 (1992-03-01), Smurkoski et al.
patent: 5112674 (1992-05-01), German et al.
patent: 5116677 (1992-05-01), Jones
patent: 5141790 (1992-08-01), Calhoun et al.
patent: 5165982 (1992-11-01), Gubitz et al.
patent: 5175049 (1992-12-01), Huff et al.
patent: 5176939 (1993-01-01), Shepherd
patent: 5208096 (1993-05-01), Dohrer
patent: 5215617 (1993-06-01), Grupe
patent: 5215804 (1993-06-01), Hagens et al.
patent: 5221276 (1993-06-01), Battrell
patent: 5245025 (1993-09-01), Trokhan et al.
patent: 5246762 (1993-09-01), Nakamura
patent: 5269776 (1993-12-01), Lancaster et al.
patent: 5273805 (1993-12-01), Calhoun et al.
patent: 5273809 (1993-12-01), Simmons
patent: 5275588 (1994-01-01), Matsumoto et al.
patent: 5296277 (1994-03-01), Wilson et al.
patent: 5300347 (1994-04-01), Underhill et al.
patent: 5310587 (1994-05-01), Akahori et al.
patent: 5324279 (1994-06-01), Lancaster et al.
patent: 5334428 (1994-08-01), Dobreski et al.
patent: 5339730 (1994-08-01), Ruppel et al.
patent: 5342344 (1994-08-01), Lancaster et al.
patent: 5344693 (1994-09-01), Sanders
patent: 5382464 (1995-01-01), Ruppel et al.
patent: 5436057 (1995-07-01), Schulz
patent: 5453296 (1995-09-01), Lauritzen et al.
patent: 5458938 (1995-10-01), Nygard et al.
patent: 5487929 (1996-01-01), Rusincovitch, Jr. et al.
patent: 5514122 (1996-05-01), Morris et al.
patent: 551
Bush Stephan Gary
McGuire Kenneth S.
Lewis Leonard W.
Tentoni Leo B.
The Procter & Gamble & Company
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