公开(公告)号：US20220403215A1

公开(公告)日：2022-12-22

申请号：US17638300

申请日：2020-08-25

Applicant: Bostik, Inc.

Inventor： David P. Keuler ,  Cory C. Bausch ,  Mark D. Alper

IPC: C09J7/38 ,  E04D12/00 ,  C09J7/40 ,  C09J11/04 ,  C09J11/08 ,  C09J119/00 ,  C09J125/08 ,  C09J153/00

Abstract: A roofing underlayment capable of adhering to a roof deck comprising: (a) a roofing membrane having a first and a second major surface; and (b) a pressure-sensitive adhesive disposed on the first major surface of the roofing membrane and comprising: (i) at least one of butyl rubber or polyisobutylene; (ii) a first liquid plasticizer, preferably polybutene; and (iii) a tackifier, wherein the Tg of the adhesive is at most about 100 C. The adhesive provides high bond strength and excellent long-term heat aging, weathering resistance, as well as good low temperature properties while providing a moisture proof seam. A method for making the roofing underlayment includes applying the adhesive to the membrane then applying a release liner over the adhesive layer. A method for using the roofing underlayment comprises removing the release liner then adhering the underlayment to the roof deck by contacting the first to the roof deck.

公开(公告)号：US11661537B2

公开(公告)日：2023-05-30

申请号：US16562748

申请日：2019-09-06

Applicant: BOSTIK, INC.

Inventor： Monina D. Kanderski ,  Michael D. Vitrano ,  David P. Keuler ,  Deepa Puthanparambil ,  Jacqueline M. Lambert ,  Brian J. Morrow

IPC: C09J167/04 ,  B65D6/00 ,  C09J5/06 ,  C09J141/00 ,  C08K5/00 ,  C08K5/053 ,  C08K5/092 ,  C08K5/12

CPC classification number: C09J167/04 ,  B65D13/04 ,  C09J5/06 ,  C09J141/00 ,  C08K5/0016 ,  C08K5/053 ,  C08K5/092 ,  C08K5/12

Abstract: A hot melt adhesive comprises a polylactide homopolymer or copolymer, such as polylactic acid; sulfonated copolyester; and at least one plasticizer, and is compostable. The plasticizer may be a solid plasticizer, such as a benzoate, and a second plasticizer may also be used. The adhesive is suitable for use in a variety of applications, such as case and carton applications, use with burlap or other compostable substrates for tree bulbs or plant seeds, and use with other compostable films, and is especially appropriate for dual-walled paperboard beverage cups. The adhesive demonstrates good bond performance comparable to non-compostable adhesives over a range of temperatures, reflective of the temperatures of hot and cold beverages.