26-03-2020 дата публикации
Номер: US20200094090A1
Принадлежит:
Fireworthy sealants may have a variety of compositions and be made by a variety of techniques. In certain implementations, a fireworthy sealant may include a body comprised of a cured, tacky, soft, deformable non-adhesive gel. The gel body may have an upper surface, a lower surface, and a perimeter, wherein the upper and lower surfaces of the gel body, in an uncompressed state, define a body thickness. The sealant may, in an uncompressed state, be dimensioned to fit in a first opening between a wall and an aircraft component surface and deformable when under compression to fit in a second opening, smaller than the first opening. The sealant may be flame retardant and produce low smoke density and low smoke toxicity. 1. A tape for use with an aircraft part having a surface , the tape comprising:a soft tacky polymer body;a skeleton; and wherein the polymer body has a surface, the surface comprising a first outer surface of the tape;', 'wherein the skin has a surface, the surface comprising a second outer surface of the tape;', 'wherein the tape passes 12 second vertical burn test according to 14 CFR Part 25 Subpart D, § 25.853(a) compartment interiors; and', {'sup': 2', '2, 'wherein the tape has toxicity limits of less than about: 150 PPM HCN, 1000 PPM CO, 100 PPM NO/NO, 100 PPM SO, 100 PPM HF, and 150 PPM HCl under AITM 3-0005, Issue 2.'}], 'a skin,'}2. The tape of claim 1 , wherein the gel is 100% solid (no VOCs).3. The tape of claim 1 , wherein the tape has a smoke density of 200 maximum at about 4.0 minutes under AITM2-0007A claim 1 , Issue 3.4. The tape of claim 1 , wherein the body comprises a two-part polymer claim 1 , the first part comprising a polyol and the second part comprising an isocyanate claim 1 , the two parts when combined curing to form the gel of the gel body claim 1 , and wherein the skeleton is comprised of a nylon claim 1 , polypropylene claim 1 , or fiberglass having a thickness less than about 0.033″.5. The tape of claim 1 , wherein the body ...
Подробнее
