公开(公告)号：EP0253642A2

公开(公告)日：1988-01-20

申请号：EP87306250.9

申请日：1987-07-15

Applicant: H.B. FULLER COMPANY

Inventor： Hume III,Robert Marshall ,  Krankkala, Paul Leonard

IPC: C09J3/06

CPC classification number: C09J103/02 ,  C08L2666/02 ,  C08L2666/54 ,  C08L3/02 ,  C08L29/04

Abstract: The presence of both soluble and insoluble polyvinyl alcohol in a corrugating adhesive containing starch, a boric acid compound, and sodium hydroxide results in substantially increased bond strength and water resistance. The soluble and insoluble fractions of the polyvinyl alcohol composition cooperate during heating of a glue line in a corrugated board product to first rapidly form a strong green bond at the gel temperature of the starch, and then to form a still stronger cured glue line. The corrugating adhesives of the invention can be used without fear of useless gel formation or delamination of the corrugated board in high speed production.

Abstract translation: 在含有淀粉，硼酸化合物和氢氧化钠的波纹粘合剂中存在可溶性和不溶性的聚乙烯醇，导致粘合强度和耐水性显着增加。 聚乙烯醇组合物的可溶性和不溶性部分在瓦楞纸制品中的胶合线加热过程中协调，首先在淀粉的凝胶温度下快速形成强的绿色键，然后形成更坚固的固化胶线。 可以使用本发明的瓦楞粘合剂，而不用担心高速生产中波纹板的无用的凝胶形成或分层。

公开(公告)号：EP0016835B1

公开(公告)日：1984-06-13

申请号：EP79901280.2

申请日：1979-09-21

Applicant: H.B. FULLER COMPANY

Inventor： BUNNELLE, William L. ,  LINDMARK, Richard C.

IPC: B31F1/12 ,  B32B31/08 ,  B32B31/20 ,  C08K5/01 ,  A41B9/14

CPC classification number: B32B27/06 ,  A41F9/02 ,  A61F13/15593 ,  B32B5/022 ,  B32B5/024 ,  B32B5/12 ,  B32B27/08 ,  B32B2307/54 ,  B32B2309/02 ,  B32B2555/02

Abstract: A purpose of the disclosed method is to impart gathers and elasticity to a relatively inelastic film, membrane, or web substrate, through elastic banding with a viscoelastic hot melt pressure-sensitive adhesive (PSA). Typically, the resulting elastic-banded substrate product (e.g. 40) will be cut into discrete units and formed into garments or body-encircling members such as disposable diapers. One step of the preferred method involves extruding a ribbon or band (13 or 113) comprising a viscoelastic hot melt PSA, which PSA has unusually high cohesion, stretchiness, and elasticity without excessive loss of adhesive bonding strength. (The viscoelastic behavior of the PSA is believed to be determined, at least in part, by the relative size of its crystalline domains and its rubbery domains and the glass transition temperatures and softening points of its components.) A second step of the preferred method involves bringing the band of hot melt (13 or 113) into adherent contact with a surface of a moving continuous substrate (22 or 32 or 132). A typical substrate would be the polyolefin film used in the manufacture of disposable diapers. The band can be bonded to the substrate through a pressure activation technique, wherein the band itself has the necessary inherent adhesive properties.

公开(公告)号：EP0085243A1

公开(公告)日：1983-08-10

申请号：EP82306727.7

申请日：1982-12-16

Applicant: H.B. FULLER COMPANY

Inventor： Labelle, Stanley Burton ,  Hagquist, James A. E.

IPC: C08G18/10 ,  C08G18/76 ,  C08L75/04 ,  C09J3/16

CPC classification number: C08G18/10 ,  C08K5/0016 ,  C08L21/00 ,  C08L75/04 ,  C08L91/00 ,  C08L93/04 ,  C08L2666/02 ,  C08L2666/28 ,  C09J175/04 ,  C08G18/3206 ,  C08G18/64 ,  C08G18/3218 ,  C08G18/62

Abstract: A single pack heat curable polyurethane composition, comprises an isocyanate-terminated prepolymer liquid phase and a separate solid polyhydroxyl compound phase insoluble in the prepolymer phase, and is suitable for use as an adhesive. The liquid prepolymer phase comprises the reaction product of an aromatic polyisocyanate and a polyhydroxyl compound. The separate insoluble solid polyhydroxyl compound phase is dispersed or suspended throughout the liquid prepolymer phase and remains separate until heat cured. The ratio of OH groups in the solid polyhydroxyl compound phase to NCO groups in the isocyanate-terminated prepolymer liquid phase is less than 2:1. The single pack polyurethane adhesive composition can also be used as an in-mould coating and an injection moulding composition.

Abstract translation: 单组分可热固化聚氨酯组合物包含异氰酸酯封端的预聚物液相和不溶于预聚物相的单独的固体多羟基化合物相，并且适合用作粘合剂。 液体预聚物相包含芳族多异氰酸酯和多羟基化合物的反应产物。 单独的不溶性固体多羟基化合物相分散或悬浮在整个液体预聚物相中并保持分离直至热固化。 固体多羟基化合物相中的OH基团与异氰酸酯封端的预聚物液相中的NCO基团的比例小于2：1。 单组分聚氨酯粘合剂组合物也可以用作模内涂层和注塑组合物。

公开(公告)号：EP0032452A3

公开(公告)日：1983-01-26

申请号：EP81300123

申请日：1981-01-13

Applicant: H.B. FULLER COMPANY

Inventor： van Dover, Dennis W. ,  Lindmark, Richard C., Jr.

IPC: B29D17/00 ,  B29F03/12 ,  G11B03/70

CPC classification number: B29C47/145 ,  B29C43/02 ,  B29C47/0019 ,  B29C47/065 ,  B29L2017/003 ,  Y10S425/81 ,  Y10T156/1039 ,  Y10T156/1041 ,  Y10T428/25 ,  Y10T428/31909 ,  Y10T428/31928

Abstract: It been found that a layered recording disc having an inexpensive core layer and high quality recording groove-accepting outer layers can be made in a relatively simple manner through an application of the technique known as coextrusion, wherein a common die, e.g. a coextrusion die (10) having a die orifice (11) for a plurality of streams (13,23 and 33) provides a multilayer coextrudate (60) having a plurality of layers (64,74 and 84). The coextrudate (60) can be cut into segments (60a) with a suitable cutting means (20). The coextrudate segments can be substantially of record thickness with a circular periphery. Alternatively, coextrudate segments (60b) can be much thicker than a record and much smaller in surface area. In either case, segments can be compression molded into discs (100) having the desired profile and/or grooves.