公开(公告)号：US20220220384A1

公开(公告)日：2022-07-14

申请号：US17600214

申请日：2019-04-02

Applicant: Italmatch Chemicals S.p.A.

Inventor： Vincenza MORONE ,  Ugo ZUCCHELLI

IPC: C09K21/04 ,  C09K21/12 ,  C08K3/32 ,  C08K5/5313 ,  C08K5/5333

Abstract: Hypophosphorous acid metal salts powders are used as flame retardant agents in flame retarded compositions suitable for polymer materials.

公开(公告)号：US20220017725A1

公开(公告)日：2022-01-20

申请号：US17298666

申请日：2018-12-03

Applicant: ITALMATCH CHEMICALS S.P.A.

Inventor： Ugo ZUCCHELLI ,  Vincenza MORONE

IPC: C08K13/02 ,  C09K21/04 ,  C09K21/10 ,  C09K21/12 ,  C08J3/22

Abstract: The present invention relates to halogen-free flame retardant compositions, comprising polyolefins polymers as active ingredient and a flame retardant system. The flame retardant system comprises at least an Hypophosphorous acid metal salt (preferred is Aluminium hypophosphite) as main flame retardant component, at least a sterically hindered N-alkoxyamine with a specific structure as first flame retardant synergic component, at least a silicon oxide or aluminium oxide or a mixture thereof with specific properties as second flame retardant synergic component.