公开(公告)号：US3423224A

公开(公告)日：1969-01-21

申请号：US3423224D

申请日：1967-01-25

Applicant: CHEVRON RES

Inventor： SCHMIDT ROBERT J ,  SANTUCCI LAWRENCE E

IPC: C08K3/00 ,  C09K3/14 ,  E01C11/24

CPC classification number: C08K3/013 ,  C08L67/06

公开(公告)号：US3920467A

公开(公告)日：1975-11-18

申请号：US82706669

申请日：1969-05-22

Applicant: CHEVRON RES

Inventor： STEWART WILLIAM T ,  SCHMIDT ROBERT J

IPC: C08G18/64 ,  C10C3/02 ,  C08L95/00 ,  C08L91/00 ,  C09D3/24 ,  C10C1/20

CPC classification number: C10C3/026 ,  C08G18/6476

Abstract: A method for enhancing the durability of asphalt which comprises reacting with the asphalt at elevated temperatures a modifying compound selected from the group consisting of: 1. R-NCO, in which R is hydrocarbyl of 1 to 24 carbon atoms; 2.

and 3. ETHYLENE OXIDE.

and Y is H, Cl, Br, I, or -O-acyl in which the acyl group is hydrocarbylacyl of from 1 to 20 carbon atoms, with the proviso that when Y is Cl, Br, or I, X is H2; when Y is H, X is C O or

in which R1 is H or R, X is H2, O, S, C O or

Abstract translation: 一种用于提高沥青耐久性的方法，其包括在升高的温度下与沥青反应，所述改性化合物选自：

公开(公告)号：US3344721A

公开(公告)日：1967-10-03

申请号：US47952165

申请日：1965-08-13

Applicant: CHEVRON RES

Inventor： FERM RICHARD L ,  SCHMIDT ROBERT J

IPC: E01C19/23

CPC classification number: E01C19/231 ,  E01C19/238